418 



NOTES ON DANISH ALG^ 



BY W.- WEST F. L. S. 



Lecturer on Botauy and Materia Sledica at the Bradford Teclinical College. 



By the kindness of Mr. J. S. Wood J liave been enabled to exa- 

 mine a gathering of Danisli Algse whicii he collected for me, in 

 the neighbourhood of Nyborg; this gathering, if not very rieh, coii- 

 tains some interesting species and two new varieties, as the follo- 

 wing list will shew. Other species of fliamentous Algse were present 

 but not in a fit condition for determination. 



I have to acknowledge the valuable help of ray son G. S. West 

 in the preparation of this paper. 



Class. CONFERVOIDE^ ISOGAM^. 



Ordo CONFERVACE^. 



Gen. Conferva (L.) Link. 



1. C. bombycina (Ag.) Wille * genuina Wille (Om Hvilecellar hos 

 Conferva, pag. 20, tab. 1, flg. 41-43, tab. 2, fìg. 51-54). 

 Long. celi. 17-22 a.; celi. 7-9 a. 



Class. CONJUGAT^. 



Ordo DESMIDIACE^. 



Gen, Onychonema Wallich. 



1. 0. fìliformis (Ehrenb.) Roy et Biss. (Jap. Desm. in Journ. Bot., 

 July-Aug., 1886, pag. 242), [0. Nordsied/iana Turn. (Some new 

 and Rare Desm. in Journ. Roy. -Micr. Soc, Dee. 1885, pag. 9.ì4, 

 PI. 15, fjg. 3 a et b)]. 



Long, sino proc. 14-15 [j..; lat. 12,5-13 7..; lat. isthra. 4-5 a. 



