334 v. ulotrichace^ (West). [Psephotaxus 
propagation is by the breaking up of the filaments into their com- 
ponent cells, each of which by division then forms a short irregular 
filament. 
4. CONFERVA L. (1737); em. Lagerh. (1887). 
1. C. bombycina Ag. Syst. Algar. 88; Wille in Ofv. K. Vet.- 
Akad. Forhandl. (1881), no. 8, 20-1. 
Forma minor Wille, I.e., 21, t. i. fig. 36-40, t. ii. fig. 55, 56 
(1881) ; W. et G. S. West in Journ. Bot. 1897, p. 34. 
PUNGO Andongo. — Ad ramulos Podosteniacearum in rivulis 
Prasidii (Casalalr) ; March 1857. No. 105- 
2. C. sandwicensis Ag. Syst. Algar. 92 (1824); Nordst. Alg. et 
Char. Sandwic. 18, t. i."fig."25 ; W. et G. S. West in Journ. Bot. 
1897, p. 34. 
Mossamedes. — Freq. in stagnis puris ad ripas flum. Bero, inter 
(Edogofiii sp. ; Aug. 1859. No. 190. 
5. MICROSPORA Thur. (1850); em. Lagerh. (1887). 
1. M. amcena Rabenh. Fl. Europ. Algar. iii. 321 (1868); W. 
et G. S. West in Journ. Bot. 1897, p. 34. 
Conferva amcena Kiitz. Species Algar. 372 (1849). 
Golungo Alto.— Adrupes in flumine Luinharluctuans ; July 1856. 
No. 203. 
2. M. Wittrockii Lagerh. in Bericht. Deutsch. Bot. Gesellsch. 
v. 417 (1887) ; W. et G. S. West in Journ. Bot. 1897, p. 34. 
Conferva Wittrockii Wille in Ofv. K. Vet.-Akad. Forhandl. 
(1881), no. 8, 20, t. i. fig. 1-11. 
Golungo Alto. — In stagnis parvis circa Fonte da Banca de 
Quilombo Quiacatnbia, ast sparsim : Jan. 1855. No. 202- 
3. M. abbreviata Lagerh., I.e., 417 (1888); W T . et G. S. West 
in Journ. Bot. 1897, p. 34. 
Conferva abbreviata Rabenh. Krypt. Flor. v. Sachs. 246(1863); 
Flor. Europ. Algar. iii. 323. 
Huilla. — Alga lsetissime viridis, lubrica, nebulosa. ad Batracho- 
spermum huilleme in rivulis prope Lopollo ; May 1860. Nos. 187 
and 4. 
4. M. Lofgrenii Nordst. in Botaniska Notiser, 1882, 55 ; W. et 
G. S. W T est in Journ. Bot. 1897, p. 34. 
Conferva Lofgrenii Nordst. in Wittr. & Nordst. Alg. aq. dulc. 
exsicc. No. 421 (1882). 
Huilla. — In uliginosis editioribus prope Humpata, Empalanca et 
Lopollo, plagas spongiosas unacum Eriocauloneis, Xyridibus et Utri- 
cularhs constituens ; May 1860. No. 15. Etiam Morro de Lopollo; 
May i860. No. 182. 
Most of the plants had formed or were forming hypnospores, which 
when fully mature were globose or subglobose, with very thick 
lamellose walls ; a few of these had evidently been formed from 
but part of the contents of a cell, and were externally nodulose. 
The cells had a very lamellose membrane, which character is most 
conspicuous during the formation of the hypnospores, the filaments 
