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292 lO.Vauch. 1. HYDROPHYTE. Pl.cell.apL
Tufts very close, blackish green ; threads light green,
bent at bottom, lying down, above upright ; last branches
horizontal, spreading.
12. Vaucheria racemosa.
c. Vesicles numerous.
Bunch vaucher,
Fresli-water ; threads hairlike^ forked ; vesicles crowded?
peduncled, in racemes.
Ectosperma racemosa, Vaucher, 32.
Vaucheria racemosia, JDr Candolle Fl, Fr. 2, 61.
Stagnant ditches; annual; April.
luj'ls close, entangled, floating; threads bent, branched;
peduncles coming out at right angles, short, racemose
vesicles 4, or many, crowded together.
13. Vaucheria multicapsnlaris. Many-fruited vaucher.
Land : threads very minute, creeping, much branched;
branches upright, simple, thicker at the tip; vesicles on the
branches, spherical, crowded.
Conferva muhicapstilari?, Dillioyn. 71.
Vaucheria muiticap«uiaris, Li/ngbye Ilydr. Dan. 89. ,
Damp shady places, among mosses.
Titfts small, entangled, irregular; ///reflf?^ appearing as
if stoloniferous ; branches sometimes forked ; vesicles stuffed
with sporidia, sometimes solitary; sporidia greenish, cylindrical,
oblong.
XI. 11. CODIUM. Stackhonse. Codium.
TJiallus threadlike, tubular, continuous, very closely entangled
into a forked, spherical, or flat dark green spongelike
mass; hranclies horizontal, sometimes clublike at the
tip, or divided, all pointing to the surface of the mat;
sporidia granular, green, in the tubes and branches. —
Marine^ dark green becoming white by exposure to the air«
1. Codium suhglol'osum. Globular codium>
3Iass spherical, hollow.
Bursa marina, liaii Syn. 31,3.
Alcynnium Bursa, Lin. Syst. Nat.
Sponsj diiiin Bursa, Lamaroux Essni.
T'ucus suhslobnsus, Clementi in AlSS.
Pucus Bursa, Turner ]Iist.3,6; Engl. Bot. 2183,
Codium Bursa, ^gardh Visp..2i.
Sea coasts.