128 CH^ETOPHORE^E. 



in Hook. Brit. Flor. p. 389.; dso in Manual, p. 122. 

 /o C clegans Ag. 



_, Hah. On sticks, &c., in stagnant pools, common. 



"^ 97i^^y. " No species is more easy to recognise ; it is formed of 



J, gelatinous protuberances of all sorts of figures, and of a 



^^,^ diameter which varies from a point to an inch." — Vauclier. 



- I^t^'^'^' / ^' CH^ETOrnORA PISIFORMIS ^//. 



Plate IX. Figs. 5, 6. 



Char. Frond subglobose, fleshy, green. Filaments sub- 

 dichotomous, obtuse. '^\)ov\(Wii globose, axillary. — Carm. 



Harvey, in Hooker's Brit. Flor. p. 389. ; Berk. Alga), 1. 1. 

 /' fig. 1. ; Grev. Crypt, t. 150. 



^i^^K^ Hat. In subalpine lakes. 



Mr. Berkeley has discovered capsular fructification on this 

 species, and Kiitzing has figured similar capsules as belonging 

 to C. tuberculosa. The occurrence of these capsules must be 

 regarded as excessively rare, and therefore commonly con- 

 sidered as the only mode of reproduction possessed by species 

 which are everywhere so abundant. 



6. Ch^tophora long^va Carr)i. 



Char, " Frond indefinitely effused, incrusting, gelatinous, 

 green. Filaments subdichotomous. Ramuli jyroduced jiro- 

 liferous towards the apex.'''' — Carm. 



C. longcRva Harvey, in Hooker's Brit. Flor. ; also in 

 Manual, p. 123. 



Hah. In a boggy stream at Appin : Captain Carmichael. 



" Fronds, continuous, or so closely set as to have that ap- 

 pearance, of a delicate green colour, and more flaccid than 

 those of C. elegans, apparently from a deficiency of gelatine. 

 Filaments in all respects similar to those of other species, 

 excepting in being mostly proliferous.". 



I cannot regard this as a distinct species, and would refer 

 to it C. endivicefolia or C. tid)erculosa . 



