AGE 
Falklands, etc.] CRYPTOGAMIA ANTARCTICA. 189 
7. Conrerva podagraria, Hook. fil. et Harv. ; filis simplicibus basi intertextis breviusculis fluctuantibus 
flexuosis flaccidis flavo-viridibus cylindraceis, articulis opacis elongato-quadratis diametro 3-2-plo longioribus 
sacculo endochromatis repletis integumento externo sepissime incrassato nodoso. (Tas. CXCI. Fig. IIT.) 
Haz. Christmas Harbour, Kerguelen's Land ; in streams of fresh water, attached to stones or earth. 
Masse unciam late, nune latius extensee, pallide virescentes. Fila flexuosa, $ unc. longa, laxe intertexta, 
opaca, e basi simplicissima, cylindracea, subeequilonga. Artieuli cylindracei, saeculo endochromatis repleti, seepis- 
sime, ob tegumentum externum morbo affectum, incrassati et nodosi. 
A remarkably distinct little species, forming patches in the water. The threads are densely tufted, curled, and 
ascending, rather stout in proportion to their length, but flaccid and somewhat soft in consistence; they are gene- 
rally covered at some part of their length with a thickened opaque substance, of irregular form, extending over 
several of the joints at once, but more or less evidently protuberant on one side of the thread. This appearance 
seems due to a diseased condition of the outer membrane ; for the sac of endochrome is often seen to be unchanged 
beneath this thickening, which sometimes increases the filament to twice its usual diameter. 
Prats CXCI. Fig. I11.—1, plant of the natural size; 2, „healthy filament; 3, portion of, altered ditto :— 
highly magnified. 
46. CLADOPHORA, ۰ 
1. CLADOPHORA rupestris, Linn.; Dillw. Hist. Brit. Conf. t. 23. 
Has. Christmas Harbour, Kerguelen’s Land ; on rocks in the sea. 
These specimens are very characteristic of the northern C. rupestris, which inhabits all latitudes between the 
Arctic Circle and Mediterranean Sea on the west coast of Europe. 
2. CLADOPHORA flexuosa ; Dillw. Hist. Brit. Conf. t. 10. 
Berkeley Sound, Falkland Islands ; in the sea. 
Specimens not very satisfactory, but we think referable to this species. The ramuli are secund, and the other 
characters of C. flezuosa are tolerably evident. 
3. CLADOPHORA arcta; Dillw. Brit. Conf. Suppl. t. E. 
Var. centralis, Conferva centralis, Lyngd. et auct. 
Haz. Hermite Island, Cape Horn, and in the Falkland Islands ; very abundant, in the sea. 
Decidedly the European plant of the name, which is a native of the German and North Atlantie Ocean. 
4. CLADOPHORA riparia, Roth; Engl. Bot. t. 2100. 
Haz. Christmas Harbour, Kerguelen’s Land; on rocks near high-water mark. 
A native also of the German Ocean, the North Sea, and West Indian Islands. 
5. Cravornora Falklandica, Hook. fil. et Harv.; filis densissime czespitosis flaccidis flexuosis intricate 
ramosissimis leete virescentibus, ramis secundariis longissimis subsimplicibus undulatis flexuosis brevibus 
secundis, ramulis patentibus distantibus, articulis granuliferis diametro triplo-quintuplo longioribus. Nobis 
in Lond. Journ. Bot. vol. iv. p. 294. (Tas. CXCUL. Fig. I.) 
Has. Berkeley Sound, and St. Salvador Bay, Falkland Islands; on muddy rocks in the sea, abundant. 
Cespites 6-10 unc. longi, densissime fastigiati, e filis flexuosis intertextis gracillimis quasi crinitis formati. Rami 
flexuosi, elongati: secundarii valde elongati, simplices, ramulis brevibus longioribusve patentibus secundis ornati. 
