Page:The Botany of the Antarctic Voyage.djvu/530

494 Scotland, also on the east coast of North America, the West Indies, and on the west coast of South America. It is singular that Kerguelen's Land should be its only hitherto recorded locality in the Southern Hemisphere.

3. Conferva Sandvicensis, Ag. ; Si/st. Alg. p. 92. (Tab. CXCII. Fig. II.)

Hab. Berkeley Sound, Falkland Islands ; in pools of fresh water, and hanging from wet rocks.

Massa pedalis et ultra, mollisshna, pallide sed leete viridis, e filis tenuissimis arachnoideis deusissime fastigiatis constans. Fila hyalina, flaccidissima, shnplicissima, vix intertexta, aciem oculorum fugientia. Articuli diametro duplo longiores, subvitrei ; sacculo endochromatis interno medio constricto, lsete virente, pellucido.

Our specimens entirely agree with Agardh's description of a plant brought from the Sandwich Islands by M. Gaudichaud.

Plate CXCII. Fig. II. — 1, plant of the natural size ; 2, portion of a thread ; 3 & 4, other portions of ditto: — both very highly magnified.

4. Conferva angidata, Hook. fil. et Harv.; fluitans reptansve, filis simplicibus tenuissimis brevibus strictiusculis hie illic incrassatis angulatisque angulis radiculo ramulove abnormali auctis, articulis diametro 3-5-plo longioribus coloratis, endocliromate siccitate contracto. Nobis in Bond. Journ. Bot. vol. iv. p. 295. (Tab. CXCI. Fig. II.)

Hab. Christmas Harbour, Kerguelen's Land ; common in streams, pools, and lakes of fresh water, Fila intertexta, tenuissime capillacea, in massam pallide virescentem subnitentem conferta. Articuli siccitate contracti, sequales, nunc medio incrassati, nucleati, rarissime ramum emittentes, sajpissime radicula parva uniarticulata aucti, nunc geniculatiui curvati.

Alhed to the British C. bombycina, but readily distinguishable by its greater rigidity, angular flexures, radicles and different hicrassations, which do not appear to us of the same character as those of Mr. Hassan's genus 'Vesiculifera.' The filaments are sometimes ramified, though very rarely, and perhaps only at the very base : the branch is always at right angles to the filament.

Plate CXCI. Fig. II. — I, plant in mass, of the natural size ; 2, thread of ditto ; 3, portion of ditto with branch ; 4, ditto with rootlets?; 5, ditto with swollen joint : — all very highly magnified.

5. Conferva ambigua, Hook. fil. et Harv.; filis basi intertextis adnatis? capillaribus rigidulis mgro-virescentibus longe fluctuantibus simplicibus hie illic spurie? ramosis radicantibus, nunc processubus lateralibus anastomosantibus auctis diametro 2-3-plo longioribus opacis sacculo endochromatis repletis. Nobis in Lond. Journ. Bot. vol. iv. p. 295. (Tab. CXCI. Fig. I.) Hab. Christinas Harbour, Kerguelen's Land ; in the sea.

File 4-5 unc. longa, basi in stratum densum intertexta, deinde libera, elongata, massam crinitam efficientia, Plate CXCI. Fig. I. — 1, plant of the natural size ; 2, filament from ditto : — magnified.

6. Conferva quadratula, Hook. til. et Harv. ; pusilla, filis tenuibus pallide viridibus flexuosis intricatis cylindraceis, articulis quadratis siccitate endocliromate collapso notatis. (Tab. CXCI. Fig. IV.)

Hab. Christmas Harbour, Kerguelen's Land; in pools and streams of fresh water; very common.

Fila simphcissima, sub a unC- longa, in strato dilute viridia, implicata, crispata, diametro C.fioccosts duplo triplove superantia. Articuli lougitudine diametrum aequantes, cyhndracei, ad nodos non constricti, pellucidi, endochromate plerumque in massam hnearem viridem collapso medio notati.

Plate CXCI. Fig. IV. — 1, plant of the natural size ; 2, thread from ditto ; 3, portion of ditto : — both very highly magnified.