310 PALMELLE^. 



2. SoROSPORA Ealfsii Ilass. 



Plate LXXIX. Fig. 3. 



Char. Frond minute, thin, gelatinous, hyaline, someichat areo- 

 late; each areola containing 2 — 8 large, globose, hlood-red 

 granules. 



Pahnclla Ralfsii Harv., in Manual, p. 179. 



Hab. Spreading over mosses on Cader Idris : Mr. Ralfs. 



^^ Fronds a few lines in diameter, gelatinous, somewhat 

 areolate, or as if composed of numerous small vesicles massed 

 toocther, each of which contains 2 — 4 or ei^^ht laro-e blood- 

 red granules, which are much larger and of a far deeper colour 

 than those of P. montana.^'' — Harv. 



In the specimens which I have examined of this species, 

 the granules in each cluster have been usually not less than 

 six or eight, and between the clusters faint divisions of the 

 mucous matrix may be discerned, which increases still further 

 the resemblance which this and the preceding plant bear to 

 Hcematococcus, and especially Hcem, sanguineus. 



3. SOROSPORA VIRESCENS Hass. 



Plate LXXVIII. Fig. 8. a. 

 Char. Frond green. Cells in clusters, nucleated, globose. 



Of this species I have seen but a very small fragment ; 

 there can be no doubt, however, I think, of its distinctness : 

 each cell is imbedded in a distinct cavity of the mucous 

 matrix, the outline of which may be distinctly traced subse- 

 quent to the removal of the cells. 



4. SOROSPORA GRUMOSA Hass. 



Plate LXXX. Fig. 7. 



Char. Frond icidely expanded, clotted, brick-red, floating. 

 Globules nsuallg binate, globose, blood-red, and surrounded 

 by a narrow pellucid limbus, occasionally aggregated. 



