350 XI. DESMIBIACE.E (West). [Cosma7'ium 



Var. aethiopicum W. et G. S. West in Journ Bot. 1897, p. 114. 

 LiBONGO. — Ad margines flum. Lifune ; Sept. 1858. No. 204. 

 Forma scrobiculata W. et G. S. West, I.e. 



PuNGo And(>n(!0.— In stagnis prope Anbilla (Condo) ; March 1857.. 

 No. 177. 



9. C. Baileyi Wolle, Desm. U. S. 64, pi. xvi. f. 17, 18 (1884); 

 W. et G. S. West, I.e. 



G. clepressum Bail., non (Nag.) Lvmd. 



LiBONGo. — Ad margines flum. Lifune ; Sept. 1858. No. 204. 



Var. angolense W. et G. S. West in Journ. Bot. 1897, p. 114. 



HuiLLA. — luter Utricularlam, Morro de Lopollo ; April I860.. 

 No. 179. 



Compare with C. Baileyi v. major W. et G. S. West (in Trans. Linn. 

 Soc. 2nd ser. v. 246, t. xiv. f. 36). 



10. C. pyramidatum Breb. in Balfs, Brit. Desm. 94, t. xv. f. 4 

 a, b, c(1848). 



HuiLLA.— In paludibus exsiccandia ; April 1860. No. 176. Etiam 

 inter Utriculariam, Morro de Lopollo ; April 1860. No. 179. 

 Forma tropica W. et G. S. West in Journ Bot. 1897, p. 115. 

 HuiLLA.— Cum typ.; Nos. 176 and 179. 

 Var. parallelum W. et G. S. West, I.e. 

 HuiLLA.— In editis de Morro de Lopollo ; Feb. 1860. No. 192. 



11. C. pseudopyramidatum Lund, in Nova Acta R. Soc. Scient. 

 Tips. ser. 3, vol. viii. no. ii. 41, t. ii. f. 18 (1871); W. et G. S. 

 West, I.e. 



HuiLLA.— In paludibus exsiccandis ; April 1860. No. 176. 



12. C. ligoniforme W. et G. S. We&t in Journ. Bot. 1897, 

 p. 115, t. 367, f. 12. 



HuiLLA. — In uliginosis editioribus prope Humpata, Empalanca et 

 Lopollo ; May 1860. No. 15 (freq. c. zygosp.). Morro de Lopollo ; 

 April 1860. No. 182. 



This species closely resembles some forms of C. pseudopyramidatum 

 Lund,, but is comparatively broader with wider apices, has different 

 basal angles, and the zygospore is very different. 



13. C. variolatum Lund., I.e., 41, t. ii. f. 19 (1871); W. et G. S. 

 West in Journ. Bot. 1897, p. 115. 



(a.) Forma scrohiculis num,erosioribus. 



HuiLLA. — In uliginosis editioribus prope Humpata, Empalanca et 

 Lopollo ; May 1860. No. 15. 



GrOLUNGo Alto. — Inter Scytonema ArcangeUi ad muscos prope 

 fontem magn. ad Banga do Sobato de Bango ; Sept. 1855. No. l59. 



(6.) Forma semicellulis latioribus. 



HuiLLA.— Morro de Lopollo ; Feb. 1860. No. 192. 



14. C. africanum W. et G. S. West in Journ. Bot. 1897, p. 115,. 

 t. 368, f. 1. 



HuiLLA.— In paludibus exsiccandis; April 1860. No. 176. Morro 

 de Lopollo ; Feb. 1860. No. 192. 



