. Fresh-water biology. Freshwater biology. Fig. 38. Clathrocystis aeruginosa Henfrey. (Original.) X4S5. 19 (17, 18) Colonies irregular in shape, frequently forming films 20 20 (21, 22) Individual mucous coats clearly evident for each daughter cell of the colony Gloeocapsa Kiitzing. Cells spherical, with thick, often lamellose, gelatinous membrane; solitary or generally united into microscopic colonies in which the membranes of the daughter cells remain enclosed for a long time within that of the mother-cell. Forming gelatinous substrata on moist walls and wet and dripping rocks. Fig. 39. Gloeo
. Fresh-water biology. Freshwater biology. Fig. 38. Clathrocystis aeruginosa Henfrey. (Original.) X4S5. 19 (17, 18) Colonies irregular in shape, frequently forming films 20 20 (21, 22) Individual mucous coats clearly evident for each daughter cell of the colony Gloeocapsa Kiitzing. Cells spherical, with thick, often lamellose, gelatinous membrane; solitary or generally united into microscopic colonies in which the membranes of the daughter cells remain enclosed for a long time within that of the mother-cell. Forming gelatinous substrata on moist walls and wet and dripping rocks. Fig. 39. Gloeocapsa polydermatica Kiitzing. X 465. (Original.) 21 (20, 22) Cells enveloped in a common gelatinous matrix. Aphanocapsa â .%S--^>M<i â¢â ...59 *''i6«;«P. *»â !,:.â â -/ Cells globose, forming irregular colonies enclosed in a thick, homogeneous integument. Differing from Aphanothece only in its globose cells. In stagnant water, on wet rocks, etc. Fig. 40. Aphanocapsa grevillei Rabenhorst. (After West.) X 4SO. '.fi®'-'<^'a8i\ 23 (12) â 12 (20, 21) Cells globose, reddish purple, arranged in a thin gelatinous stra- tum Porphyridium NageU. Common on damp ground and at the base of damp walls. Cells solitary or a few adhering together in a group, not forming a definite layer Chroococcus Nageli. Cells globose or somewhat angular, with firm, often thick, lamellose or homogeneous membrane. Free-floating, or forming a stratum on wet 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 Ward, Henry Baldwin, 1865-1945; Whipple, George Chandler, 1866-1924. joint author. New York, John Wiley & sons, inc. ; [etc. ,etc. ]
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectfreshwa, bookyear1918
