334 V. uLOTRicHACEiE (West). \PsepJiotaxvs 



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. Svst. Algar. 88; Wille in Ofv. K. Vet.- 

 Akad. Fcirhandl. (1881), no. 8, 20-1. 



Fwma 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 Podostemacearum in rivulis 

 Praesidii (Casalale) ; 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 

 (Edogonii sp. ; Aug. 1859. No. 190. 



5. MICROSPORA Thur. (1850); era. Lagerh. (1887). 



1. M. amoena Rabenh. Fl. Europ. Algar. iii. 321 (1868); W. 

 et G. S. West in Journ. Bot. 1897, p. 34. 



Conferva amcena Klitz. Species Algar. 372 (1849). 

 GoLUNGO Alto. — Adrupes in flumine Luinha fluctuans ; 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 Ai.TO. — In stagnis parvis circa Fonte da Banga de 

 Quilombo Quiacatubia, ast sparsim ; Jan. 1855. No. 202. 



3. M. abbreviata Lagerh., I.e., 417 (1888); W. 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 lastissime viridis, lubrica, nebulosa, ad Batracho- 

 spermum htiillense in rivulis prope LopoUo ; May 1860. Nos. 187 

 and 4. 



4. M, Lbfgrenii Nordst. in Botaniska Notiser, 1882, 55 ; W. et 

 G. S. West 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 uuacum Eriocauloneis, Xyridibus et Utri- 

 culariis constituens ; May 1860. No. 15. Etiam Morro de Lopollo; 

 May i 860. 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 



