The English flora - SeaweedAfrica

Vaucheria.] ALG.T: INARTICULATE. 319
53. Vaucheria. De Cand. Vaucheria.
Fronds aggregated, tubular, continuous, capillary, coloured
by an internal green pulverulent mass. Fructification ; darkgreen
homogeneous vesicles (coniocystae, Ag.) attached to the
frond. Grev. Ale/. Brit. p. 189. t. 19—Named in compliment
to the Rev. T. P. Voucher, a minister of Geneva and very
acute Botanist, who published a Monograph of this genus in
his Histoire des Confervcs d Eau douce, under the name of Ec-
tosperma.
* Vesicles solitary.
1. V. dichotoma, Ag. (large, dichotomous Vaucheria); filaments
dichotomous fastigiate the vesicles solitary globose sessile.
Grev.—Ag. Sp. Alg. v. 1. p. 460. Lyngb. Hydroph. Dan. p.
75. t. 19. Grev. Alg. Brit. p. 190.— Conferva dichotoma, Linn.—
Dillw. Conf. t. 15. E. Bot. t. 932 [3. submarina ; frond more
slender, the vesicles ovate or elliptical. Grev.—Lyngb. Hydroph.
Dan. p. 76. t. 20.
Pools and ditches, generally of fresh water. 0. In the sea, Weymouth,
Rev. M. J. Berkeley. ©. Spring and Summer.— The largest of
this genus, often a foot or more long, sometimes filling up the ditches
with its numerous filaments.
2. V. velutina, Ag. (velvet Vaucheria) ; filaments creeping,
branches erect fastigiate woven into a velvety stratum, capsules
solitary lateral. Carm.—Ag. Syst. Alg. Addend. p. 312. Carm.
MSS. cum Lc.
On the muddy shore, flooded by the tide, Appin ; Capt. Carmichacl.
Miltown Malbay, Mr. Harvey. ©. Spring, Summer.— " Filaments exceedingly
tough, interwoven into a den^e velvety-green stratum, pellucid
below and creeping over the nnul; branches near the extremity,
erect, fastigiate and more or less crooked. Capsules solitary, globular,
on short lateral peduncles." Carm. MSS.
3. V. marina. Lyngb. (marine Vaucheria); filaments loosely
tufted or distinct, branches few very long- obtuse, \ esicles solitary
obovate pedicellate lateral, ('arm. — Lyngb, Hydroph. Dan. p.
79./. 22. A . Sj>.
;/ Alg. r. 1. p. 7:i. /. 163. Carm. MSS. cum Tc.
On Furceiiaria lumbricatu, Appin, extremely rarej CapL Cer-
michael. ©. Summer. — "This occurs in small, loosely floating tufts,
an inch long. Filaments \cr\ Blender and flaccid, filled tor the most
part with a green granuliferous fluid, but here and there empty and
hyaline, the lowerbranches mostly fasciculate,upper ones single,erect,but
with \er\ wide axill:e. I'r.sidrs lew, Scattered, lateral, OOOVate, shortly
pedicellcd, f a dai k-biownish green, BS arc, in many instances, the
branches. On drying* it assumes a deep shining green colour. Prom
its exceedingly tough and flaccid texture, am! its gloesj darkhue,
not to mention it -^ habitat ( o different from that of all the other
ies)t there can be little doubt, I believe, that tin-, plant belongs
more properly to the Genus Brycpris than to I
— Wire T. MOrtfM, in. Iced, pinnated, a. Mr. llai\