ore uniform and 
a l — 
Falklands, etc.] CRYPTOGAMIA ANTARCTICA. 187 
44. BATRACHOSPERMUM, Roth. 
1. BATRACHOSPERMUM vagum, Ag.; Harvey, Manual, p. 119. Lyngb. Hydroph. Dan. t. 44. 
Has. Hermite Island, Cape Horn; in an alpine pool. 
We cannot distinguish these from British specimens; an alpine locality is common to both, the English plant 
having been gathered on the summit of Snowdon. 
45. DRAPARNALDIA, Bory. 
1. DRAPARNALDIA pusilla, Hook. fil. et Harv. ; filis perpusillis densissime ceespitosis gelatinosis parce 
vage ramosis flexuosis, ramulis perpaucis brevibus apice non setigeris simplicibus, articulis coloratis luteo- 
viridibus diametro sub-duplo longioribus. Nobis in Lond. Journ. Bot. vol. iv. p. 296. (Tas. CXC. Fig. II.) 
Has. Berkeley Sound, Falkland Islands ; growing on the roots of Crantzia lineata, in fresh-water. 
Fila sub 4 unc. longa, radices radiculasque submersas vestientia, diametro D. tenuis, cui verosimiliter species 
affinis; differt preecipue filis rigidioribus ramulisque non setigeris. 
We have referred this and the following species to the genus Draparnaldia with little hesitation, from their 
affinity with D. tenuis, Ag. Those naturalists, however, who know the great difficulty of examining such things 
in a dried state, will best understand the uncertainty which attaches to all determinations of species belonging to these 
tribes which are not from the fruit, or from characters of higher importance than the filamentous branches, evidently 
referable to known forms. 
Puate CXC. Fig. 11.—1, plant of the natural size, on roots of Crantzia lineata; 2 and 3, threads ;—highly 
magnified. 
2. DRAPARNALDIA sp. ? 
Has. Hermite Island, Cape Horn; in stagnant water on the hills. 
The filaments of this species are infinitely more slender than those of the last, but similarly gelatinous and of the 
same structure. 
46. CONFERVA, 4g. 
1. CoxrERva clavata, Ag.? Syst. Alg. p. 99. 
Var. Darwinii ; pro genere maxima, filis 2 uncialibus e basi gradatim incrassatis, articulis ad nodos con- 
strictis diametro paulo longioribus, inferioribus longioribus, supremis + unc. latis. (Tas. 02011, Fig. I.) 
Has. Cape Tres Montes, on Sphacelaria funicularis; C. Darwin, Esq. 
Of this variety we have seen but one specimen and refer it doubtfully to the C. clavata of the Cape of Good 
Hope and New Zealand, to which it is certainly very closely allied. 
PraTE OXCII. Fig. 1.—Plants of C. clavata, var. Darwinii, of the natural size, parasitical on Sphacelaria fumi- 
cularis, Mont. 
2. CONEERVA Linum, Ag.; Harv. Man. Brit. Alg. p. 128. : 
Has. Christmas Harbour, Kerguelen’s Land; in the sea, on rocks near high-water mark. 
A widely distributed species, found from the Canary Islands, Mediterranean and Black Sea, to the coasts of 
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