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580 l.Vagiiiaiia. 1. HYDROPHYTE. Plcell.aph.
A. OsciLLATORiDE-E. TJiallus Cylindrical, tubular,
jointless, membranaceous, gelatinous, or rather leatherlike,
mostly unbranched ; sporidia ringlike, often becoming globular,
in a single, parallel, transverse series within the
tube, so that the tube appears annulated, with a pellucid
border and interstices.
'
Gen. I. 1. VA GINARIA. Sheath-moss.
Threads simple, gelatinous, parallel, decumbent, enclosed
several together in a slippery membranaceous sheath ; ends
exserted, radiating, oscillating— Green.
Vaginaria vulgaris. Common sheath- moss.
Sheath simple or branched, glaucous green, slippery:
threads equal, rings weak.
Oscillatoria vas;inata, Vaucfier, 202.
Conferva vaginata, DiUwyn Syn. 40; Engl. Bot. 1995.
Oscillatoria autuinnalis vaginata, j4gardli Syn. 107.
Oscillatoria clUhonoplastes ;S, Lynghye Hydr. Dan. 92.
Damp gravel-walks, garden-pots.
Tvft blackish or bluish green ; sheath twining, attenuated;
when cut or pressed, it divides into smaller plants of
the same kind, these interior plants being thrust out at the
end or bursten sides gives it a branched appearance ;
grows very quickly.—Another species of this genus grows
at the bottom of the sea, where, by fixing the sand, it favours
the deposition of mud.
II. 2. OSCILLATORIA, Vaucher. Quick-moss,
Threads simple, membranaceous, gelatinous, straight,
decumbent on a gelatinous, slimy bed ; oscillating. Plant..
aquatic.
1 . Oscillatoria limosa. Mud quick- fnoss.
Bed blackish green, slipper}', very compact ; threads ra-
diating, very long, stiff, straight, bluish green.
Conferva limosa, Roih Catal. 3, 197.
Conferva fontinalis, DiUwyn, HA, partly.
Oscillatoria Adansonia, Vauch. 194.
Oscillatoria liraosa, Agardh Dinp. Alg. 33.
Bottom of Still waters; becoming free in the spring.
Threads entangled; radii an inch long, blunt, oscillate
very lively ; rings very close.