. A history of British ferns. Ferns. POLYSTICHUM ACULEATUM. Ill. PRICKLY FERN, {one-sixteenth the natural size). Genus.—Polystichum, (see page 103). Species.—Aculeatum. Caudex tufted : stipes short, densely chaffy: frond linear, rigid, leathery, glabrous, bipinnate : pinnae pinnate or pinnatifid : pinnules distinct (aculeatum, Sm.) or de- current (lobatum, Sm.), serrate; serratures spinose : clusters of capsules circular, crowded, often confluent, confined to the upper part of the frond. Polypodium aculeatum, Linn. Sp. PI. 1552. Polypodium lobatum, " af&nis prsecedenti [P. angulare, i

This image is a public domain image, which means either that copyright has expired in the image or the copyright holder has waived their copyright. Alamy charges you a fee for access to the high resolution copy of the image.

This image could have imperfections as it’s either historical or reportage.

. A history of British ferns. Ferns. POLYSTICHUM ACULEATUM. Ill. PRICKLY FERN, {one-sixteenth the natural size). Genus.—Polystichum, (see page 103). Species.—Aculeatum. Caudex tufted : stipes short, densely chaffy: frond linear, rigid, leathery, glabrous, bipinnate : pinnae pinnate or pinnatifid : pinnules distinct (aculeatum, Sm.) or de- current (lobatum, Sm.), serrate; serratures spinose : clusters of capsules circular, crowded, often confluent, confined to the upper part of the frond. Polypodium aculeatum, Linn. Sp. PI. 1552. Polypodium lobatum, " af&nis prsecedenti [P. angulare, inf.] an distincta sit species ? " Huds. Fl. Ang. 459 ; With. Bot. An: Veg. 651.. 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.. Newman, Edward, 1801-1876. London, J. van Voorst