. Lichens. Lichens. LICHEN ALGAE 57 Coccomyxa subellipsoidea is given' as the gonidium of the primitive lichen Botrydina vulgaris {¥[g. 25). The cells are surrounded by a common gelatinous Fig. 34. Coccobotrys Verritcariae Chod. from culture x 800 (after Chodat). Fig. 25. Coccomyxa subellipsoidea Acton. Actively dividing cells, the dark portions indicating the chloroplasts x tooo (after Acton). 5. DiPLOSPHAERA Bial.' D. Chodati was taken from the thallus of Lecanora tartarea and successfully cultivated. It resembles Protococcus, but has smaller cells and grows more rapidly; it is evid
. Lichens. Lichens. LICHEN ALGAE 57 Coccomyxa subellipsoidea is given' as the gonidium of the primitive lichen Botrydina vulgaris {¥[g. 25). The cells are surrounded by a common gelatinous Fig. 34. Coccobotrys Verritcariae Chod. from culture x 800 (after Chodat). Fig. 25. Coccomyxa subellipsoidea Acton. Actively dividing cells, the dark portions indicating the chloroplasts x tooo (after Acton). 5. DiPLOSPHAERA Bial.' D. Chodati was taken from the thallus of Lecanora tartarea and successfully cultivated. It resembles Protococcus, but has smaller cells and grows more rapidly; it is evidently closely allied to that genus, if not merely a form of it. 6. Urococcus Kiitz. Cells more or less globose, rather large, and coloured with a red-brown pigment, with the cell-wall thick and lamellate, forming elongate strands of cells (Fig. 26). Recorded by Hue' in the cephalodium of Lepolichen coccophora, a Chilian lichen. Fam. Tetrasporaceae. Cells in groups of 2 or 4 surrounded by a gelatinous sheath. I. Palmella Lyngb. Cells globose, oblong or ellipsoid, grouped without order in a formless mucilage (Fig. 27). Among lichens associated with Palmella are the Epigloeaceae and 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 Smith, Annie Lorrain. Cambridge, At the University Press
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