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308 25. Conferva. 1. HYDROPHYTE. Fl. cell. aph.
18. CoJiferva Hutchinsia. Hutcliins' crowsilk.
Threads very much branched, bent, rather cartilaginous.
brittle, glaucous green ; branches and twigs scattered, smallest
l-rowed, adpressed ; j'om^i torulose, twice as long as broad.
Conferva Hutchinsia, Diihvyn, 65.
Conferva centralis, Lyngbye Hydr. Dan. 161 ?
Sea-shores ; spring.
19. Conferva nana. Dujarf crowsilk.
Threads pale reddish green, branched, very minute, in
tufts; branches and twigs alternate, pointed, remote; joints
2 or 3 times as long as broad ; knots obscure.
Conferva nana, Dillwyn, 30.
On fontinalis antipyretica, in alpine rivers.
Tiifis about half an inch long, pale reddish.
20. Conferva vifii. Wine crowsilk.,
Tifts brownish yellow; threads hyaline, much branched,
entangled; branches attenuated, acute, twice as long as
broad.
Conferva vini, Agardh Syn. 72.
In Madeira wine.
Tifts cloudlike, floating, an inch broad, brownish yellow
threads very slender indeed.
21. Conferva stellar is. Starry crowsilk.
Threads hyaline, arising parallelly from an orbicular
basis, very minute, equal.
Conferva stellaris, Fl. Dan. 660.
On the inside of glass bottles.
Shoots green, about a line in diameter, edges stellate;
threads about an inch long, branched ; branches remote, alternate
; j'oi?its 4- or 5 times as long as broad.
22. Conferva csgagropilaris. Hairball crowsilk.
Threads arising from a common centre, forming a globe,
much branched; branches rather crowded, blunt; joints
4 times as long as broad ; rather swollen above.
Conferva jEoagropila, Lin. Sp. PI. 1637 ;
Moor balls.
Bottom of alpine lakes.
Engl. But. 1377.
Balls dark green, from the size of a pea to 3 inches
diameter, exactly spherical, hollow ; branches rather spreading;
knots pellucid, when dry contracted.