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SIO 25. Conferva. 1. HYDROPHYTE. Pl.cell.aplu
b. Threads greenish^ simple.
27. Conferva P echinulata. Hedgehog-like croivsilk.
Threads simple, very short, blunt, spreading every way
from a centre, and forming a globe, glaucous green; joints
as long as broad.
Rivularia echimilata, En^l. Bot. 1378.
Floating on lakes.
Threads rather clubshape ; joints about 5 or 6.
28. Conferva sordida. Dirty crowsilk.
Threads simple, very slender, cobweblike, tenacious, yellow
green ; joints 4 times longer than broad; knots pellucid.
Conferva sordida, Roth Cat. 1, 171 ;
Conferva calycina, u4gardh Syn. 78 ?
Engl. Bol.2303.
Stagnant water adhering to grass; April to July.
Mass cloudlike, yellowish green; threads shining, curved;
hyaline, equal.
^.fuscata. Threads very slender, very closely entangled
into a light brownish cloud.
y. utricnlata. Threads very slender; granules collapsed
into several, distinct, oblong globules in each joint ; laiots
here and there contracted.
29. Conferva foccosa. Flocklike crowsilk.
Threads simple, very slender; joints about twice as long
as broad, hyaline with a pellucid, globular spot ia the
centre.
Prolifera floccosa, Vauclier, 131.
Conferva floccosa, Agardli Dispos, 29.
Ditches and running water.
Tufts straight, 2 or 3 inches long.
30. Cojferva fus^acissima. Fugacious crowsilk.
Threads simple, very slender, slimy, rather straight
joints rather longer than broad, with a granular band in
the middle.
Conferva fiig'acissima, Roth Cat. 3, 176.
Ditches adhering to grasses.
31. Conferva oscillator ioides. Oscillaloria crowsilk.
Threads simple, cobvveblike, very slender, very long;
joi?its longer than broad, with a granular band in the
middle.