Potamogeton perfoliatus Stock Photos and Images

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Potamogeton perfoliatus Stock Photos and Images

Claspingleaf pondweed (Potamogeton perfoliatus) aquatic plant underwater. Stock Photo

RF2ANA503–Claspingleaf pondweed (Potamogeton perfoliatus) aquatic plant underwater.

Potamogeton perfoliatus (Potamogeton perfoliatus) Stock Photo

RM2AY2PE2–Potamogeton perfoliatus (Potamogeton perfoliatus)

perfoliate pondweed, clasping-leaf pondweed (Potamogeton perfoliatus), under water, Germany, North Rhine-Westphalia Stock Photo

RMEYYK0G–perfoliate pondweed, clasping-leaf pondweed (Potamogeton perfoliatus), under water, Germany, North Rhine-Westphalia

Curled pondweed. Potamogeton crispus. Stock Photo

RMBWND8B–Curled pondweed. Potamogeton crispus.

Close-up view of pondweed leaves under water. Potamogeton Stock Photo

RF2B6294B–Close-up view of pondweed leaves under water. Potamogeton

PERFOLIATE PONDWEED Potamogeton perfoliatus (Potamogetonaceae) Stock Photo

RMCR32GP–PERFOLIATE PONDWEED Potamogeton perfoliatus (Potamogetonaceae)

Potamogeton perfoliatus winter shoot 18-19 Stock Photo

RMW31HFW–Potamogeton perfoliatus winter shoot 18-19

Durchwachsenes Laichkraut (Potamogeton perfoliatus) Stock Photo

RFJBYBXG–Durchwachsenes Laichkraut (Potamogeton perfoliatus)

Perfoliate Pondweed, Baden-Wuerttemberg, Perfoliate Pondweed (Potamogeton perfoliatus), Altrheinarm, Baden-Wuerttemberg, Germany Stock Photo

RM2RY44P5–Perfoliate Pondweed, Baden-Wuerttemberg, Perfoliate Pondweed (Potamogeton perfoliatus), Altrheinarm, Baden-Wuerttemberg, Germany

RFJBYBXF–Durchwachsenes Laichkraut (Potamogeton perfoliatus)

RMKBX9RG–487 Potamogeton perfoliatus

RMP7YXBF–487 Potamogeton perfoliatus.

Frizzy spawn and perennial pondweed, A: Potamogeton crispus L. - Krausblättriges pondweed, B: Potamogeton perfoliatus L. - Perennial pondweed, Family: 16. Potamiaceae - seedwort plants, Taf. 33, after p. 78 (Bd. 1), 1886, Otto Wilhelm Thomé: Prof. Dr. Thomé's Flora von Deutschland, Österreich und der Schweiz in Wort und Bild. Gera-Untermhaus: Verlag von Fr. Eugen Köhler, [1886 Stock Photo

RM2A2RRNH–Frizzy spawn and perennial pondweed, A: Potamogeton crispus L. - Krausblättriges pondweed, B: Potamogeton perfoliatus L. - Perennial pondweed, Family: 16. Potamiaceae - seedwort plants, Taf. 33, after p. 78 (Bd. 1), 1886, Otto Wilhelm Thomé: Prof. Dr. Thomé's Flora von Deutschland, Österreich und der Schweiz in Wort und Bild. Gera-Untermhaus: Verlag von Fr. Eugen Köhler, [1886

RFBXB5N8–Aquatic plant, close-up

. 469 Potamogeton perfoliatus nf Stock Photo

RMP92RME–. 469 Potamogeton perfoliatus nf

350 Potamogeton perfoliatus L Stock Photo

RMHYENXR–350 Potamogeton perfoliatus L

BB-0188 Potamogeton perfoliatus Stock Photo

RMW2R0CY–BB-0188 Potamogeton perfoliatus

RMATEYXM–Perfoliate Pondweed

Ontario Sessional Papers, 1913, No.49-113 . Fig. 3. Potamogeton heterophyllus, Various-leaved Pond-weed. Reduced to about one-lialf natural size. The imperfect leaves are characteristic at this tim^ of year. IG TXr^EASE OF TTTE FOOD SFFPLY ^To. 72. Fig. 4a. Potamogeton perfoliatus. Clasping-leaved Pond-weed. Collected by Mr. G. H,Graham in a pond near Toronto, June 25, 1908. Reduced to about one-third naturalsize. Stock Photo

RM2AN8074–Ontario Sessional Papers, 1913, No.49-113 . Fig. 3. Potamogeton heterophyllus, Various-leaved Pond-weed. Reduced to about one-lialf natural size. The imperfect leaves are characteristic at this tim^ of year. IG TXr^EASE OF TTTE FOOD SFFPLY ^To. 72. Fig. 4a. Potamogeton perfoliatus. Clasping-leaved Pond-weed. Collected by Mr. G. H,Graham in a pond near Toronto, June 25, 1908. Reduced to about one-third naturalsize.

RF2ANA4YN–Claspingleaf pondweed (Potamogeton perfoliatus) aquatic plant underwater.

RM2AY2PEB–Potamogeton perfoliatus (Potamogeton perfoliatus)

RMEYYK0R–perfoliate pondweed, clasping-leaf pondweed (Potamogeton perfoliatus), under water, Germany, North Rhine-Westphalia

RMMKN9XT–Perfoliate Pondweed

RF2BKHWYK–Close-up view of pondweed leaves under water. Potamogeton

350 Potamogeton perfoliatus L., P. polygonifolius Pourr Stock Photo

RMJYJP5H–350 Potamogeton perfoliatus L., P. polygonifolius Pourr

Illustration Potamogeton crispus & Potamogeton perfoliatus 0. Stock Photo

RM2BKXHG8–Illustration Potamogeton crispus & Potamogeton perfoliatus 0.

. 22 487 Potamogeton perfoliatus Stock Photo

RMP8T157–. 22 487 Potamogeton perfoliatus

RMHYHJTB–350 Potamogeton perfoliatus L., P. polygonifolius Pourr

Ontario Sessional Papers, 1913, No.49-113 . Fig. 4a. Potamogeton perfoliatus. Clasping-leaved Pond-weed. Collected by Mr. G. H,Graham in a pond near Toronto, June 25, 1908. Reduced to about one-third naturalsize.. Fig, 4b. Two leaves, one-half natural size, of a plant from Whitewater Lake, showingthe clasping base and the variation in size. Drawn bv Mr. G. H. Graham. 1913 FOR DUCKS IN ^^ORTHER^t qXTARIO. 17 Stock Photo

RM2AN7YE4–Ontario Sessional Papers, 1913, No.49-113 . Fig. 4a. Potamogeton perfoliatus. Clasping-leaved Pond-weed. Collected by Mr. G. H,Graham in a pond near Toronto, June 25, 1908. Reduced to about one-third naturalsize.. Fig, 4b. Two leaves, one-half natural size, of a plant from Whitewater Lake, showingthe clasping base and the variation in size. Drawn bv Mr. G. H. Graham. 1913 FOR DUCKS IN ^^ORTHER^t qXTARIO. 17

Claspingleaf pondweed growing by a stone in clear-watered lake Stock Photo

RF2ANA4YP–Claspingleaf pondweed growing by a stone in clear-watered lake

Underwater landscape with claspingleaf pondweed (Potamogeton perfoliatus) water plants in clear-watered lake. Stock Photo

RFR9B66W–Underwater landscape with claspingleaf pondweed (Potamogeton perfoliatus) water plants in clear-watered lake.

Pondweeds and small perch by a big stone Stock Photo

RF2K96EFJ–Pondweeds and small perch by a big stone

40044 Potamogeton heterophyllus (16-17); Potamogeton perfoliatus (18-19) Stock Photo

RMKT3B2N–40044 Potamogeton heterophyllus (16-17); Potamogeton perfoliatus (18-19)

RM2F2E64E–Potamogeton perfoliatus nf.

. 337 Illustration Potamogeton crispus & Potamogeton perfoliatus 0 Stock Photo

RMP902K4–. 337 Illustration Potamogeton crispus & Potamogeton perfoliatus 0

RMGK6MB5–40044 Potamogeton heterophyllus (16-17); Potamogeton perfoliatus (18-19)

. www.flickr.com/photos/internetarchivebookimages/tags/book... . Fig. I.— Potamogeton praelongu-s. Fig. 2.-—Potamogeton perfoliatus.. Stock Photo

RM2CPC8DT–. www.flickr.com/photos/internetarchivebookimages/tags/book... . Fig. I.— Potamogeton praelongu-s. Fig. 2.-—Potamogeton perfoliatus..

Clasping-leaved pondweed underwater at Nordic lake Stock Photo

RF2K91BYM–Clasping-leaved pondweed underwater at Nordic lake

RF2ANA4Y6–Claspingleaf pondweed growing by a stone in clear-watered lake

Claspingleaf pondweed underwater on lake bottom Stock Photo

RF2AMJ15K–Claspingleaf pondweed underwater on lake bottom

RMKBX6KT–Potamogeton perfoliatus nf

RMP7X58A–350 Potamogeton perfoliatus L.

. Potamogeton perfoliatus L. 31 January 2001. Amédée Masclef (1858–) Alternative names Masclef Description French botanist Date of birth/death 1858 19.. Authority control : Q18507759 VIAF: 233362923 ISNI: 0000 0003 6776 1587 LCCN: n88663684 Botanist: Masclef SUDOC: 035266805 WorldCat 3 350 Potamogeton perfoliatus L Stock Photo

RMP25TMF–. Potamogeton perfoliatus L. 31 January 2001. Amédée Masclef (1858–) Alternative names Masclef Description French botanist Date of birth/death 1858 19.. Authority control : Q18507759 VIAF: 233362923 ISNI: 0000 0003 6776 1587 LCCN: n88663684 Botanist: Masclef SUDOC: 035266805 WorldCat 3 350 Potamogeton perfoliatus L

. Dansk plantevaekst. Plants; Plant ecology. 262 1^- Forandringer af den færdige Strandeng gi'unden til venstre en helt tilvokset Lo). Ude i de store Loer vokse mange Vandplanter [Myriophylhwt verticiUatum, Potamogeton pusillus, P. pedinatus og P. perfoliatus, Ruppia, Clddophora, Entero- morpha, Ectocarpus littoralis o. a.). I den østfriesiske Marsk ere Loerne ofte omgivne af Bræmmer af Ohione portulacoides [Buchenau, 1889). Loerne kunne, om man saa maa sige, de ud, idet den ydre Ende paa en eller anden Maade afspærres fra Havet, f. Eks. ved en Strand-. rig. iss. Grønningen ved Nordby; Udsigt Stock Photo

RMPFH932–. Dansk plantevaekst. Plants; Plant ecology. 262 1^- Forandringer af den færdige Strandeng gi'unden til venstre en helt tilvokset Lo). Ude i de store Loer vokse mange Vandplanter [Myriophylhwt verticiUatum, Potamogeton pusillus, P. pedinatus og P. perfoliatus, Ruppia, Clddophora, Entero- morpha, Ectocarpus littoralis o. a.). I den østfriesiske Marsk ere Loerne ofte omgivne af Bræmmer af Ohione portulacoides [Buchenau, 1889). Loerne kunne, om man saa maa sige, de ud, idet den ydre Ende paa en eller anden Maade afspærres fra Havet, f. Eks. ved en Strand-. rig. iss. Grønningen ved Nordby; Udsigt

RM2CPC8FB–. www.flickr.com/photos/internetarchivebookimages/tags/book... . Fig. I.— Potamogeton praelongu-s. Fig. 2.-—Potamogeton perfoliatus.

Worn out and decomposing sprouts of claspingleaf pondweed in late summer. Stock Photo

RF2AMJ15P–Worn out and decomposing sprouts of claspingleaf pondweed in late summer.

RMJYKPP9–350 Potamogeton perfoliatus L

RMP7X585–350 Potamogeton perfoliatus L., P. polygonifolius Pourr.

RMP25TM3–. Potamogeton perfoliatus L. 31 January 2001. Amédée Masclef (1858–) Alternative names Masclef Description French botanist Date of birth/death 1858 19.. Authority control : Q18507759 VIAF: 233362923 ISNI: 0000 0003 6776 1587 LCCN: n88663684 Botanist: Masclef SUDOC: 035266805 WorldCat 3 350 Potamogeton perfoliatus L., P. polygonifolius Pourr

. A history of the game birds, wild-fowl and shore birds of Massachusetts and adjacent states : including those used for food which have disappeared since the settlement of the country, and those which are now hunted for food or sport, with observations on their former abundance and recent decrease in numbers; also the means for conserving those still in existence . Fig. I.— Potamogeton praelongu-s. Fig. 2.-—Potamogeton perfoliatus.. Stock Photo

RM2CP0407–. A history of the game birds, wild-fowl and shore birds of Massachusetts and adjacent states : including those used for food which have disappeared since the settlement of the country, and those which are now hunted for food or sport, with observations on their former abundance and recent decrease in numbers; also the means for conserving those still in existence . Fig. I.— Potamogeton praelongu-s. Fig. 2.-—Potamogeton perfoliatus..

Worn out leaves of claspingleaf pondweed in late summer. Stock Photo

RF2AMJ15M–Worn out leaves of claspingleaf pondweed in late summer.

RMKBY79Y–Illustration Potamogeton crispus & Potamogeton perfoliatus 0

Archive image from page 81 of Die Pflanzendecke Österreich-Ungarns Auf Grund. Die Pflanzendecke Österreich-Ungarns. Auf Grund fremder und eigener Forschungen geschildert diepflanzendecke01haye Year: 1914 64 Der Einfluß von Klima und Boden. [Abb. 19. Limnäen. a Potamogeton perfoliatus. b Potamogeton natans. c Potamogeton pusillus. d Myriopliyllum verticillatul Stock Photo

RMT3W1T9–Archive image from page 81 of Die Pflanzendecke Österreich-Ungarns Auf Grund. Die Pflanzendecke Österreich-Ungarns. Auf Grund fremder und eigener Forschungen geschildert diepflanzendecke01haye Year: 1914 64 Der Einfluß von Klima und Boden. [Abb. 19. Limnäen. a Potamogeton perfoliatus. b Potamogeton natans. c Potamogeton pusillus. d Myriopliyllum verticillatul

. [Abb. 19. Limnäen. a Potamogeton perfoliatus. b Potamogeton natans. c Potamogeton pusillus. d Myriopliyllum verticillatul Stock Photo

RMMCRDK1–. [Abb. 19. Limnäen. a Potamogeton perfoliatus. b Potamogeton natans. c Potamogeton pusillus. d Myriopliyllum verticillatul

RM2CPJNJ8–. A history of the game birds, wild-fowl and shore birds of Massachusetts and adjacent states : including those used for food which have disappeared since the settlement of the country, and those which are now hunted for food or sport, with observations on their former abundance and recent decrease in numbers; also the means for conserving those still in existence . Fig. I.— Potamogeton praelongu-s.. Fig. 2.— Potamogeton perfoliatus.

Worn out sprouts of claspingleaf pondweed in late summer. Stock Photo

RF2AMJ15H–Worn out sprouts of claspingleaf pondweed in late summer.

Stems of perfoliate pondweed water plant Stock Photo

RF2NGNBM8–Stems of perfoliate pondweed water plant

. Eesti Looduseuurijate Seltsi aastaraamat . Abbildung IV. Sehwimmender Rohrbestand im Nixen-See. An diesen Binsen- resp. Rohr-Gürtel schliesst sich noch ein Kranz von weissen und gelben Wasserroseu an, neben dem häu- fig auch Myriophyllum so wie Potamogeton perfoliatus auftreten, doch reicht das nur bis zu einer Wassertiefe von 4,25 m. Mit der Füüfmeterkurve findet der Pflanzenwuchs fast überall seinen Ab- schluss. Ais Bodenpflanzen, die in die grösste Tiefe vordringen, habe ich neben wenigen Charen vorzugsweise das Wassermoos Fontinalis antipyretica konstatieren können, wogegen ich Ceratophy Stock Photo

RMMA74TJ–. Eesti Looduseuurijate Seltsi aastaraamat . Abbildung IV. Sehwimmender Rohrbestand im Nixen-See. An diesen Binsen- resp. Rohr-Gürtel schliesst sich noch ein Kranz von weissen und gelben Wasserroseu an, neben dem häu- fig auch Myriophyllum so wie Potamogeton perfoliatus auftreten, doch reicht das nur bis zu einer Wassertiefe von 4,25 m. Mit der Füüfmeterkurve findet der Pflanzenwuchs fast überall seinen Ab- schluss. Ais Bodenpflanzen, die in die grösste Tiefe vordringen, habe ich neben wenigen Charen vorzugsweise das Wassermoos Fontinalis antipyretica konstatieren können, wogegen ich Ceratophy

RM2CNRE0D–. A history of the game birds, wild-fowl and shore birds of Massachusetts and adjacent states : including those used for food which have disappeared since the settlement of the country, and those which are now hunted for food or sport, with observations on their former abundance and recent decrease in numbers; also the means for conserving those still in existence . Fig. I.— Potamogeton praelongu-s. Fig. 2.— Potamogeton perfoliatus..

RM2CP3FY2–. A history of the game birds, wild fowl and shore birds of Massachusetts and adjacent states, including those used for food which have disappeared since the settlement of the country, and those which are now hunted for food or sport, with observations on their former abundance and recent decrease in numbers; also the means for conserving those still in existence . Fig. 1.— Potamopeton praelongus. Fig. 2.— Potamogeton perfoliatus..

RM2CNRDYR–. A history of the game birds, wild-fowl and shore birds of Massachusetts and adjacent states : including those used for food which have disappeared since the settlement of the country, and those which are now hunted for food or sport, with observations on their former abundance and recent decrease in numbers; also the means for conserving those still in existence . Fig. I.— Potamogeton praelongu-s. Fig. 2.— Potamogeton perfoliatus.

. The Game breeder . hing is more common inthe stomachs than the seeds of theseplants. As mentioned above, there are manyspecies of pondweeds, and they presentquite a diversity of forms. Illustrations(figs. 9-17) of the 9 species of generaldistribution serve to show the generalappearance of some of these plants. AllPotamogetons are eaten by clucks, andany one of them would be a valuableacquisition for a ducking ground. The pondweed illustrated by figure 14-(Potamogeton perfoliatus) is known asredhead or duck grass, and is an impor-tant duck food, said to be especially at-tractive to redheads. Stock Photo

RM2CNDKBE–. The Game breeder . hing is more common inthe stomachs than the seeds of theseplants. As mentioned above, there are manyspecies of pondweeds, and they presentquite a diversity of forms. Illustrations(figs. 9-17) of the 9 species of generaldistribution serve to show the generalappearance of some of these plants. AllPotamogetons are eaten by clucks, andany one of them would be a valuableacquisition for a ducking ground. The pondweed illustrated by figure 14-(Potamogeton perfoliatus) is known asredhead or duck grass, and is an impor-tant duck food, said to be especially at-tractive to redheads.

. The Game breeder . ®4 .!M /A / J J ts ■xfH&. | I IM. Fig 15 —Potamogeton foliosus Raf propagating Potamogetons by means ofseeds and of whole plants. He furtherstates that the most successful andlargest growths have been on bottomswhere the mud is about 6 inches deepover sand or clay. By mowing the plants Fig-. 14 —Potamogeton perfoliatus L * The manuals of botany give the rane ofthis plant as south to Florida. We have beenable to find definite records only as far asNorth Carolina. In our map (fig. 19) thenorthern limit of the plant is extended to GreatSlave Lake, on the basis of the pro Stock Photo

RM2CNDKB7–. The Game breeder . ®4 .!M /A / J J ts ■xfH&. | I IM. Fig 15 —Potamogeton foliosus Raf propagating Potamogetons by means ofseeds and of whole plants. He furtherstates that the most successful andlargest growths have been on bottomswhere the mud is about 6 inches deepover sand or clay. By mowing the plants Fig-. 14 —Potamogeton perfoliatus L * The manuals of botany give the rane ofthis plant as south to Florida. We have beenable to find definite records only as far asNorth Carolina. In our map (fig. 19) thenorthern limit of the plant is extended to GreatSlave Lake, on the basis of the pro

. Billeder af nordens flora. Plants; Plants; Plants. 487. HJÆRTEBLADET VANDAKS, potamogeton perfoliatus.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Mentz, August, 1867-1944; Ostenfeld, C. H. (Carl Hansen), 1873-1931. København, G. E. C. Gad's forlag Stock Photo

RMRHRMT8–. Billeder af nordens flora. Plants; Plants; Plants. 487. HJÆRTEBLADET VANDAKS, potamogeton perfoliatus.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Mentz, August, 1867-1944; Ostenfeld, C. H. (Carl Hansen), 1873-1931. København, G. E. C. Gad's forlag

. Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. Fig. 13.—Potamogeton prwlongus. Fig. 14.—Potamogeton perfoliatus.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O. Stock Photo

RMRGBT2Y–. Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. Fig. 13.—Potamogeton prwlongus. Fig. 14.—Potamogeton perfoliatus.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.

. Illustrations of the British flora: a series of wood engravings, with dissections, of British plants. Botany; Botany. 956. Potamogetonpralongus. 957^ potamogeton perfoliatus.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Fitch, W. H. (Walter Hood), 1817-1892; Smith, Worthington George, 1835-1917; Bentham, George, 1800-1884. Handbook of the British flora. London, L. Reeve & Co. Stock Photo

RMRDY70A–. Illustrations of the British flora: a series of wood engravings, with dissections, of British plants. Botany; Botany. 956. Potamogetonpralongus. 957^ potamogeton perfoliatus.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Fitch, W. H. (Walter Hood), 1817-1892; Smith, Worthington George, 1835-1917; Bentham, George, 1800-1884. Handbook of the British flora. London, L. Reeve & Co.

. Illustrations of the British flora: a series of wood engravings, with dissections, of British plants. Botany; Botany. 962. Potamogeton perfoliatus, L. Perfoliate Pondwced.. 963. Potamogeton crispus, L. Curly Pojtdiveed.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Fitch, W. H. (Walter Hood), 1817-1892; Smith, George Worthington, 1835-1917; Bentham, George, 1800-1884. Handbook of the British flora. London, L. Reeve Stock Photo

RMRDWM22–. Illustrations of the British flora: a series of wood engravings, with dissections, of British plants. Botany; Botany. 962. Potamogeton perfoliatus, L. Perfoliate Pondwced.. 963. Potamogeton crispus, L. Curly Pojtdiveed.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Fitch, W. H. (Walter Hood), 1817-1892; Smith, George Worthington, 1835-1917; Bentham, George, 1800-1884. Handbook of the British flora. London, L. Reeve

. Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. Fig. 13.—Potamogeton prwlongus. Fig. 14.—Potamogeton perfoliatus.. Fig. 15.—Potamogeton foliosus. B400M Fig. 16.—Potamogeton pusillus. 840IM Figs. 13-16.—Wide ranging species of pondweeds. (From Morong.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O. Stock Photo

RMRGBT2B–. Bulletin of the U.S. Department of Agriculture. Agriculture; Agriculture. Fig. 13.—Potamogeton prwlongus. Fig. 14.—Potamogeton perfoliatus.. Fig. 15.—Potamogeton foliosus. B400M Fig. 16.—Potamogeton pusillus. 840IM Figs. 13-16.—Wide ranging species of pondweeds. (From Morong.). Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.

. Illustrations of the British flora: a series of wood engravings, with dissections, of British plants. Botany; Botany. 960. Potamogeton lucens, L. 961. Polamogetonprcelongus, Wulf. Shining Pmdweed. Zo„g Pondmeed.. 962. Potamogeton perfoliatus, L. Perfoliate Pondwced.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Fitch, W. H. (Walter Hood), 1817-1892; Smith, George Worthington, 1835-1917; Bentham, George, 1800-1884. Hand Stock Photo

RMRDWM24–. Illustrations of the British flora: a series of wood engravings, with dissections, of British plants. Botany; Botany. 960. Potamogeton lucens, L. 961. Polamogetonprcelongus, Wulf. Shining Pmdweed. Zo„g Pondmeed.. 962. Potamogeton perfoliatus, L. Perfoliate Pondwced.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Fitch, W. H. (Walter Hood), 1817-1892; Smith, George Worthington, 1835-1917; Bentham, George, 1800-1884. Hand

. Blätter für Aquarien- und Terrarien-Kunde. üafel 7. OrifliHa^eirfjnuno oon St. 9Zeun$iß.. 3 4 50 Ejetmtfdje Uifi'crpfiau3cn. l. 6c£)toünmcnbc§ Shticlrtraut (Potamogeton natans). 2. Sttmleudjret (Ohara). 3. Quettnwoä (Fontanalis). 4. £ornfraut (Ceratopliyllum demersum). 5. äDäctffetpeft (Elodea oanadensis). 6. aSradjfentwtut Jsoetis lacustris). 7. ©urcliiuaclifcin-s Saidjtraut (Potamogeton perfoliatus). B. Steine äSafietünfe (Lemna miuor). Beilage ber „SBIötter für Stquarien* unb Xerraricufreuube". 9. ga^rgang. 1898. Sßt. 18.. Please note that these images are extracted from scanned pag Stock Photo

RMRHHFHP–. Blätter für Aquarien- und Terrarien-Kunde. üafel 7. OrifliHa^eirfjnuno oon St. 9Zeun$iß.. 3 4 50 Ejetmtfdje Uifi'crpfiau3cn. l. 6c£)toünmcnbc§ Shticlrtraut (Potamogeton natans). 2. Sttmleudjret (Ohara). 3. Quettnwoä (Fontanalis). 4. £ornfraut (Ceratopliyllum demersum). 5. äDäctffetpeft (Elodea oanadensis). 6. aSradjfentwtut Jsoetis lacustris). 7. ©urcliiuaclifcin-s Saidjtraut (Potamogeton perfoliatus). B. Steine äSafietünfe (Lemna miuor). Beilage ber „SBIötter für Stquarien* unb Xerraricufreuube". 9. ga^rgang. 1898. Sßt. 18.. Please note that these images are extracted from scanned pag

. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 15. Potamogeton perfoliatus L. Potamogeton perfoliatus L. Sp. PI. 126. 1753- Potamogeton perfoliatus lanceolatus Robbins in A. Gray, Man. Ed. 5, 488. 1867. Not Blytt 1861. Potamogeton perfoliatus Richardsonii A. Bennett, Journ. Bot. 27 : 25. 1889. Potamogeton Richardsonii Rydb. Bull. Torrey Club 32 : 599. 1905. Potamogeton bupleuroides Fernald, Rhodora 10 : 46. Stock Photo

RMRDKCB3–. An illustrated flora of the northern United States, Canada and the British possessions, from Newfoundland to the parallel of the southern boundary of Virginia, and from the Atlantic Ocean westward to the 102d meridian. Botany; Botany. 15. Potamogeton perfoliatus L. Potamogeton perfoliatus L. Sp. PI. 126. 1753- Potamogeton perfoliatus lanceolatus Robbins in A. Gray, Man. Ed. 5, 488. 1867. Not Blytt 1861. Potamogeton perfoliatus Richardsonii A. Bennett, Journ. Bot. 27 : 25. 1889. Potamogeton Richardsonii Rydb. Bull. Torrey Club 32 : 599. 1905. Potamogeton bupleuroides Fernald, Rhodora 10 : 46.

. Botanikai kzlemnyek. Plants; Plants -- Hungary. ÖKOLÓGIAI MEGPIGYELÉSEK 111 vizsgálására, illet?leg a további megfigyelésekre e növényt már fel nem használhattam, mert kénbaktériumok elszaporodása foly- tán, a harmadik esztend? telén, az akváriumot teljesen ki kellett ürítenem. De így is sikerült megállapítanom azt az okot, amely a növény alkalmazkodási képességét kedvez?tlenül befolyásolta. Miel?tt azonban ennek részletezésére térnék, szükségesnek tar- tom, hogy ismert ökológiai adatok segítségével megvizsgáljam,. I 1! I i ! I ! 10 211 30 cm 1. kép. A Potamogeton perfoliatus második esztend Stock Photo

RMRHAXYG–. Botanikai kzlemnyek. Plants; Plants -- Hungary. ÖKOLÓGIAI MEGPIGYELÉSEK 111 vizsgálására, illet?leg a további megfigyelésekre e növényt már fel nem használhattam, mert kénbaktériumok elszaporodása foly- tán, a harmadik esztend? telén, az akváriumot teljesen ki kellett ürítenem. De így is sikerült megállapítanom azt az okot, amely a növény alkalmazkodási képességét kedvez?tlenül befolyásolta. Miel?tt azonban ennek részletezésére térnék, szükségesnek tar- tom, hogy ismert ökológiai adatok segítségével megvizsgáljam,. I 1! I i ! I ! 10 211 30 cm 1. kép. A Potamogeton perfoliatus második esztend

. Bulletin de la Société impériale des naturalistes de Moscou. Science; Biology; Geology; Natural history. — 255 — Aber ich habe mich dennoch nicht hierauf beschränkt und eine genaue Untersuchung der gefundenen Pflanzen ausgeführt. Dabei konnte ich eine ganze Reihe morphologischer und anatomischer für Potamog. perf. eigentümlicher Studien wahrnehmen. Ich muss bemerken, dass ich mich nicht zufällig am Sseligersee befand, sondern dass dessen Wasserflora während der Sommer von 1910 und 1911 den Hauptzweck meiner Beschäftigung bildete.. Fig. 1. Luftsprose von Potamogeton perfoliatus. Verkl. ca Vs Stock Photo

RMRGPJD4–. Bulletin de la Société impériale des naturalistes de Moscou. Science; Biology; Geology; Natural history. — 255 — Aber ich habe mich dennoch nicht hierauf beschränkt und eine genaue Untersuchung der gefundenen Pflanzen ausgeführt. Dabei konnte ich eine ganze Reihe morphologischer und anatomischer für Potamog. perf. eigentümlicher Studien wahrnehmen. Ich muss bemerken, dass ich mich nicht zufällig am Sseligersee befand, sondern dass dessen Wasserflora während der Sommer von 1910 und 1911 den Hauptzweck meiner Beschäftigung bildete.. Fig. 1. Luftsprose von Potamogeton perfoliatus. Verkl. ca Vs

. Acta Soc. pro Fauna et Flora Fennica. Natural history. r^.^y^s 'l CO JO t> ° & c* +± Fig. 9. Nagra skargardsvaxters utbredning. tingen avtar eller tilltar ju mer man narmar sig havsbandet. I manga fall beror ett avtagande helt enkelt darpa, att lampliga standorter, t. ex. skyddade gyttjestrander, myr- marker etc. bli allt sallsyntare ju langre ut man kommer. Pa detta satt forstar man att bl. a. Equisetum limosum, Potamogeton perfoliatus, Phragmites communis, Scirpus mari- timus, Carex limosa, Naumbnrgia thyrsiflora och Pedicularis palustris bli allt sallsyntare utat. Men en hel del av Stock Photo

RMRR354G–. Acta Soc. pro Fauna et Flora Fennica. Natural history. r^.^y^s 'l CO JO t> ° & c* +± Fig. 9. Nagra skargardsvaxters utbredning. tingen avtar eller tilltar ju mer man narmar sig havsbandet. I manga fall beror ett avtagande helt enkelt darpa, att lampliga standorter, t. ex. skyddade gyttjestrander, myr- marker etc. bli allt sallsyntare ju langre ut man kommer. Pa detta satt forstar man att bl. a. Equisetum limosum, Potamogeton perfoliatus, Phragmites communis, Scirpus mari- timus, Carex limosa, Naumbnrgia thyrsiflora och Pedicularis palustris bli allt sallsyntare utat. Men en hel del av

. The Canadian field-naturalist. Carte 14. Potamogeton perfoliatus. Au Quebec, P. perfoliatus est ubiquiste au sud du 49° de latitude (groupe III de Hellquist) et est locale- ment abondant. Cette abondance est en effet limitee aux milieux de predilection de la plante dans certaines regions. On la rencontre frequemment dans les riv- ieres de la plaine du Saint-Laurent ainsi que dans le fleuve lui-meme. II est interessant de remarquer que I'espece s'eloigne pen du fleuve vers le nord, ce qui marque la limite de son abondance sur le continent, abondance centree en Nouvelle-Angleterre avec des ext Stock Photo

RMRG1DRK–. The Canadian field-naturalist. Carte 14. Potamogeton perfoliatus. Au Quebec, P. perfoliatus est ubiquiste au sud du 49° de latitude (groupe III de Hellquist) et est locale- ment abondant. Cette abondance est en effet limitee aux milieux de predilection de la plante dans certaines regions. On la rencontre frequemment dans les riv- ieres de la plaine du Saint-Laurent ainsi que dans le fleuve lui-meme. II est interessant de remarquer que I'espece s'eloigne pen du fleuve vers le nord, ce qui marque la limite de son abondance sur le continent, abondance centree en Nouvelle-Angleterre avec des ext

. Die Pflanzendecke Österreich-Ungarns. Auf Grund fremder und eigener Forschungen geschildert. Plants; Plants. 64 Der Einfluß von Klima und Boden.. [Abb. 19. Limnäen. a Potamogeton perfoliatus. b Potamogeton natans. c Potamogeton pusillus. d Myriopliyllum verticillatul. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Hayek, August, 1871-1928. Leipzig, Wien, F. Deuticke Stock Photo

RMRCHGTC–. Die Pflanzendecke Österreich-Ungarns. Auf Grund fremder und eigener Forschungen geschildert. Plants; Plants. 64 Der Einfluß von Klima und Boden.. [Abb. 19. Limnäen. a Potamogeton perfoliatus. b Potamogeton natans. c Potamogeton pusillus. d Myriopliyllum verticillatul. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Hayek, August, 1871-1928. Leipzig, Wien, F. Deuticke

. Botanisk tidsskrift. Plants; Plants -- Denmark. 227 stem, in P. undulatus the stem is compressed with a more or less deep ridge on each of the two broad sides [Fig, 1, B and Fig. 3, ^]; this characteristic form of the stem is also found in P. crispus [Fig. 1, C], but not in any other Danish form of Fotamogeton, and as far as I know, not in any other Potamogeton. A comparing examination of the structure of the stems and the leaves further proves, that the other parent must be P. praelongus and not P. perfoliatus. In P. undulatus numerous vascular bundles are found in the bark [Fig. 1, B, /A-] Stock Photo

RMRHA0N5–. Botanisk tidsskrift. Plants; Plants -- Denmark. 227 stem, in P. undulatus the stem is compressed with a more or less deep ridge on each of the two broad sides [Fig, 1, B and Fig. 3, ^]; this characteristic form of the stem is also found in P. crispus [Fig. 1, C], but not in any other Danish form of Fotamogeton, and as far as I know, not in any other Potamogeton. A comparing examination of the structure of the stems and the leaves further proves, that the other parent must be P. praelongus and not P. perfoliatus. In P. undulatus numerous vascular bundles are found in the bark [Fig. 1, B, /A-]

$. A Balaton tava?nak e?s partmelle?ke?nek no?ve?nyfo?ldrajza e?s ede?nyes no?ve?nyzete. Plants; Phytogeography. 84 A RaJatonmelIék egyéb vizeinek virágzó növényzete P. lucens, P. crispus^ P. pusillus, P. interruptus, a kevéshímü boglárka, a csillag- hínár, a Zaiuiichellia palustris^ Utricularia vulgáris, kevés Chara és Nitella, a vízi lófark, borzhínár {Ccratophyllum demcrsum, C. stibmersum és C. Haynaldianuni). Ha a vízi fü levele szélesebb, pl. a Potamogeton lucens-é, a P. coloratus-é, a P. perfoliatus-é, nem bukkan a víz színére, mint a tündérrózsáé vagy a Pö/aw/í'^í'/í'w. 23. ábra. A súlyo Stock Photo$

RMRJN8B8–. A Balaton tava?nak e?s partmelle?ke?nek no?ve?nyfo?ldrajza e?s ede?nyes no?ve?nyzete. Plants; Phytogeography. 84 A RaJatonmelIék egyéb vizeinek virágzó növényzete P. lucens, P. crispus^ P. pusillus, P. interruptus, a kevéshímü boglárka, a csillag- hínár, a Zaiuiichellia palustris^ Utricularia vulgáris, kevés Chara és Nitella, a vízi lófark, borzhínár {Ccratophyllum demcrsum, C. stibmersum és C. Haynaldianuni). Ha a vízi fü levele szélesebb, pl. a Potamogeton lucens-é, a P. coloratus-é, a P. perfoliatus-é, nem bukkan a víz színére, mint a tündérrózsáé vagy a Pö/aw/í'^í'/í'w. 23. ábra. A súlyo

RMRDY70E–. Illustrations of the British flora: a series of wood engravings, with dissections, of British plants. Botany; Botany. 956. Potamogetonpralongus. 957^ potamogeton perfoliatus.. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original work.. Fitch, W. H. (Walter Hood), 1817-1892; Smith, Worthington George, 1835-1917; Bentham, George, 1800-1884. Handbook of the British flora. London, L. Reeve & Co.

RMRD0N88–. Dansk plantevaekst. Plants; Plant ecology. 262 1^- Forandringer af den færdige Strandeng gi'unden til venstre en helt tilvokset Lo). Ude i de store Loer vokse mange Vandplanter [Myriophylhwt verticiUatum, Potamogeton pusillus, P. pedinatus og P. perfoliatus, Ruppia, Clddophora, Entero- morpha, Ectocarpus littoralis o. a.). I den østfriesiske Marsk ere Loerne ofte omgivne af Bræmmer af Ohione portulacoides [Buchenau, 1889). Loerne kunne, om man saa maa sige, de ud, idet den ydre Ende paa en eller anden Maade afspærres fra Havet, f. Eks. ved en Strand-. rig. iss. Grønningen ved Nordby; Udsigt

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Potamogeton perfoliatus Stock Photos and Images

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