NOTES ON FRESHWATER ALGE 85 
ro integument is quite transparent and colourless, of variable 
dth ore its entire length, and it occasionally branches. The 
bas walls are firm but very thin. — is one chromatophore 
of the cell-wall. Numerous minute granules are seen distributed 
through both the chromatopho e and the remainder of the cell- 
protoplasm. No zoogonidia or ite reproductive bodies were ob- 
served. The cells multiply i in three directions by simple cell- fission 
This alga and Pheococcus paludosus are the only known British 
alge belonging to the family Phwocapsacea. 
Mii Sa 
8. CoLEocH%ZTE IRREGULARIS Pringsh. 
Hab. Capel Curig, N. Wales, on Lobelia Dortmanna. 
9. But BOCHETE SUBINTERMEDIA Elfy. in Hirn, ‘ Verzeichnis fin- 
lind. Gidog.,’ Acta Soc. pro Fauna et Flora Fennica, xi. no. 6, 
1895; Hirn, ‘Monogr. des Gidog.,’ Acta Soc. Scient. Fennice, 
xxvii. p- 882, t. 58, £. 8338 (1900). 
Crass. _ —- 15-21 c altit. 23 a a reg 
” 2- ” 
call. ieiteieice 14°5- 16 4; r e aaa i 
nnandr. 8°6-10°6 4; ,, 26-27 p. 
Hab, oN tig Sanita Cornwall. 
tbe, plants observed bear opaieniie resemblance to B. inter- 
ia De Bary, but the dissepiments of the supporting cells were 
+P 
larger than in that species. The oogonia were usually situated 
under a terminal bristle, and the iitanicengin cum scattered 
— . 
RUFESCENS Wittr. in Ofvers. af K. Vet. -Akad. 
Forh. yor ipee no. re p. 184; Hirn, ‘ Monogr. des Cidog.,’ Acta Soc. 
Scient. Fennice, xxvii. p. 76, t. 1, f.4 (1900). Forma oogoniis 1-4 
i Sa gas i 2) — hae Him, ie. p. TT) 
veget. f 
5-12°5 p; altit. 5- oe mgs : 
9 99 9p; » »»7-8-plo 
»  oogon 4-26 p; »» 24-84°5 p; 
»,  oospor. cr A 5 21-188; 
antherid. », 9°6-10°5 p. 
Hab. St. Mary’s, Scilly Islands, ‘in great sincadanee 
11. Gi. merme Hirn, /.c. p. 287, t. 2, f. 10. 
Crass. cell. veget. 13-13°5 p; a. 7-plo gh : 
e ns 87-3 a sw be Oe 
oospor. 35°5-375 ph; », 5- 
Bt Mary’s, Scilly Islands, ‘amongst the preceding species, 
but not . abunda: 
di. ZIG-ZAG Cleve i in Wittr. ‘ Dispos. Gidog. Suec.,’ Ofvers. 
af K. Vet.-Akad. Férh. no. 8, 1870, p. 120; Him, lc. p. _ 
t. 7, f. 42. 
p2 
