. The algae. Algae. 86 THE ALGAE motion. The harder the floor tiie more regular is the shape of the balls, but even so the ball structure would also appear to be in- herent in the alga because ^balls' have been kept in a laboratory for eight years without losing their shape. The following types of ?jUriKWV!*,,^. Fig. 46 Cladophora. A, ball of Aegagropila holsatica cut through and the dirt removed ( xf). B, same before cutting ( x|). C, C. glomerata, commencement of septum formation. D, C. glomerata, second stage in septum formation. E, C. glomerata, septum almost complete. F, diagram illustrat
. The algae. Algae. 86 THE ALGAE motion. The harder the floor tiie more regular is the shape of the balls, but even so the ball structure would also appear to be in- herent in the alga because ^balls' have been kept in a laboratory for eight years without losing their shape. The following types of ?jUriKWV!*,,^. Fig. 46 Cladophora. A, ball of Aegagropila holsatica cut through and the dirt removed ( xf). B, same before cutting ( x|). C, C. glomerata, commencement of septum formation. D, C. glomerata, second stage in septum formation. E, C. glomerata, septum almost complete. F, diagram illustrating evection. G, H, types of branching. I, C. glomerata, structure of wall at a septum. J, Spongomorpha coalita with hook branches. K, C. callicoma, struc- ture of chloroplast with nuclei and pyrenoids. L, Ae. Sauteri, zoospores in zoosporangium. M, Ae. Sauteri, zoospores. (A, B, after Acton; C-K, after Fritsch; L, M, after Nishimura and Kanno.) branches have been recognized in the Aegagropila forms: (a) rhizoids; (b) cirrhoids, both these and the rhizoids being neutral or non-reproductive branches; (c) stolons or vegetative reproductive branches. Many of the species of Cladophora are perennial. In some of the fresh-water species certain cells may become swollen. 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 Chapman, V. J. (Valentine Jackson), 1910-. London, Macmillan; New York, St. Martin's Press
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Keywords: ., bo, bookcentury1900, bookcollectionbiodiversity, booksubjectalgae
