. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. 390 MOSSES AND FERNS CHAP. major part from the cap cell, which in all the forms becomes much more developed than in any other Ferns, and from it alone the apical annulus is derived. In Ancimia and Mohria the tissue of the tip of the leaf adjacent to the sporangia grows into a continuous indusium, which pushes them under to the lower side. In Lygodium (Fig. 224) each sporangium very evidently corresponds to a single lobe of the leaf segment, and has a vein corresponding to this. The pocket-like

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.

. The structure and development of mosses and ferns (Archegoniatae). Plant morphology; Mosses; Ferns. 390 MOSSES AND FERNS CHAP. major part from the cap cell, which in all the forms becomes much more developed than in any other Ferns, and from it alone the apical annulus is derived. In Ancimia and Mohria the tissue of the tip of the leaf adjacent to the sporangia grows into a continuous indusium, which pushes them under to the lower side. In Lygodium (Fig. 224) each sporangium very evidently corresponds to a single lobe of the leaf segment, and has a vein corresponding to this. The pocket-like indusium surrounding each sporangium grows up about it much as the indusium of Trichomanes grows up about the whole sorus. 1. 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.. Campbell, Douglas Houghton, 1859-1953. New York, The Macmillan Company;