CHROOCOCCACER. 209 
Rabh, Alg. Eur, ii, 48. Kirch. Alg. Schles 259. 
Palmella sanguinea, Ag. Syst. p. 15. 
Hematococcus sanguineus. Ag. Icon. t. 24. Harv. Man. p. 
181. Hass, Alg. 329, t. 79, f. 2. Eng. Fl. v., p. 895. 
On rocks, 
Plate LXXXV. fig. 1. Cells and families magnified 400 diam. 
Gleocapsa Ralfsiana. (Harv.) Kutz. Tab. 1., t. 28. 
Thallus gelatinous, compact, dark purple brown; cells of 
medium size, spherical, tegument very thick, opaque, and in- 
tense purple, the outer very broad, usually angular trom mutual 
compression, almost colourless, rarely diffluent, enclosing 
smaller families of 2, 4, 6, 8; cell-contents granulated, pale ver- 
digris green. 
Size. Cells with envelope :01--017 mm. Small families 
*022--04 mm. Large families, to ‘17 mm. 
Rabh. Alg. Hur. il., 44. 
Sorospora Ralfsit, Hass, Alg. 310, t. 79, f. 3. 
Palmella Ralfsit, Harv. Man. 179, 
Amongst moss and lichens. 
“Thallus a few lines in diameter, gelatinous, somewhat areolate, or as 
if composed of numerous small vesicles massed together, each of which 
contains 2-4 or 8 large blood red granules, which are much larger and of 
a far deeper colour than those of G. magma.” —Harvey. 
Plate LXXXV, fig. 2. Cells and families magnified 400 diam. 
Gleocapsa Shuttleworthiana. Kutz, Zab. 1, t. 23,f.1, 
Thallus gelatinous, rather hard, compact, dark rufous brown ; 
cells small spherical, tegument very thick, many times broader 
than the central cell, globose, intense orange red, the outer glo- 
bose or angular, homogenous, pale orange, or (rarely) colour- 
less, all, except the inner, soon diffluent; cell-contents pale 
verdigris green. 
Sizz. Cells with envelope ‘0075-013 mm. Families -035 
mm. 
Rabh. Alg. Eur. ii., 44. Kirch. Alg. Schles. 259, 
On moist rocks, and amongst moss. 
Plate LXXXYV. fig. 8. Cells and families magnified 400 diam. 
Gleocapsa rupestris. Kutz. Tab. Phyce. 1., t.22, 7.11 
Thallus dark brown, crustaceous, rather hard ; cells rather 
large, spherical; tegument very thick, lamelluse, yellow or 
