The English flora - SeaweedAfrica

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320 ALG/E INARTfCULATiE. [Fauchcria.
4. V.Dillwynii, Ag. (Dillwyns Vaucheria); fronds branched
flexuose, vesicles globose lateral sessile. Lyngb. Hydroph.
Dan. p. 77. t. 21. Ag. Sp. Alg. v. 1. p. 463. Grev. Alg. Brit,
p. 191. t. 19. Ceramium Dillivynii, Roth.— Conferva frigida,
Dilltv. Conf. p. 49.
On the ground in damp situations, common. 0. Spring and
Autumn.—" It forms a very thin intricate fleece, of a green colour, creeping
over the earth. Vesicles numerous, globular or slightly depressed,
sessile or on short pedicels." Carm. MSS.
5.V. terrestris, De Cand. {ground Vaucheria); filaments straight
forming a lax somewhat bristly stratum (upon the ground),
vesicles lateral hemispherical on the side of the horn-shaped
peduncle or receptacle. Grev.—Ag. Sp. Alg. v. I. p. 465. Grev.
Alg. Brit. p. 191. Ectosperma terrestris, Vauch.
On the ground, in moist shady places. 0. Spring.—" Frond more
straight and rigid than in the preceding species, forming a more or less
interwoven stratum, the summits of the little branches often erect and
giving the whole a bristly appearance." Grev.
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** Vesicles 2 or more together.
6. V. sessilis, De Cand. (sessile-fruited Vaucheria); fronds entangled
in floating masses, vesicles oval sessile in pairs with an
intermediate little horn-like process. Grev.—E. Bot. t. 1765.
Lyngb. Hydroph. Dan. p. 80. t. 22. Ag. Sp. Alg. v. 1. p. 466.
Grev. Alg. Brit. p. 192.
Pools and ditches, Sussex. 0. February.
7. V. omithocephala, Ag. (Birds-head Vaucheria); filaments
loosely branched and entangled in dense floating masses, vesi-
cles unilateral binate or quaternate oblique upon short straight
peduncles with a short beak and pellucid border. Grev—
Ag. Sp.Alg. v. I. p. 467. Hook. El. Scot. P. II. p. 93.
Alg. Brit. p. 193.— Conferva vesicata, Dillw. Conf. t. 74.
Grev.
Pools and ditches. 0. Autumn.
8. V. gemi?idta, De Cand. (twin-fruited Vaucheria); fronds
dichotomous very slender forming dense floating masses,
vesicles ovate opposite laterally pedunculate on a horn- shaped
process or receptacle. Grev—E. Bot. t. 1766. Lyngb. Hydroph.
Dan. p. 80. t. 23. Ag. Sp. Alg. v. 1. p. 467. Grev. Alg.
Brit. p. 193. t. 19.
Ectosperma geminata, Vauch. Conf. p. 29.
t. 2.f. 5.
Pools and stagnant waters. 0. Spring and Summer.—"This species
forms an extremely dense green stratum, a foot or more in diameter
usually decaying in the middle and leaving there an empty space. Filaments
dichotomous. Peduncles mostly on one side, in length about
two diameters of the filament, bearing two opposite globular vesicles,
with a straight (curled, or often reflexed, Grev.) intermediate process."
Carm. MSS.
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