Lrjnghya] xxi. lyngbye^ (West). 377 



PuNGO Andongo. — Inter Pdrplnirosiphovem Notai'isii prope Condo ; 

 March 1857. No. 9. 



4. L. versicolor Gomont, I.e., 147, t. 4, fig. 4, 5 (1892); 

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



Fhwrnidiimi versicolor Wartm. (1861). 



MossAMEDES. — Ad ripas limosas flum. Bero pr. Cavalheiros ; June 

 1869. No. 175. 



3. PHORMIDIUM Kiitz. (1843). 



1. P. subsolitarium W. et G. S. West in Journ. Bet. 1897, 

 p. 298. 



PuNGO A\D()NG(i. — In Batracliospermo graciWmo ad lapides sub- 

 mersas in rivulo de Tangue ips. Prassidii ; May 1857. No. 3. 



The moniliform cells and the delicate hyaline sheath place this plant 

 in the genus Fhonnidium, although the plants often occur singly. 

 The elliptic cells and subsolitary habit characterise the species. 



2. P. angustissimum W. et G. S. West in Journ. Bot. 1897, 

 p. 298. 



Moss,A.MEDES. — Inter Glfcotrkhiam, cethiopicam et Cluiram sp. in rivo 

 Caroca prope Cabo Negro ; Sept. 1859. No. 19. 



PuNGO Andongo. — Inter Nostoc repandum adrupes editiores vulcan. 

 Praesidii prope Cabondo tempore pluvio ; Feb. 1857. No. 21. 



This narrow species is nearest to P. laminosicm (Ag.) Gomont, but 

 it is distinguished by its much narrower trichomes, which are con- 

 stricted at the dissepiments, and its usually much longer cells. 



3. P. lamiuosum Gomont in Journ. de Botaniq. iv. 355 (1890) ; 

 in Ann. Sci. Nat. 7^' serie, Bot. xvi. 167-8, t. 4, f. 21, 22 (1892) ; 

 W. et G. S. West, I.e., p. 299. 



Oseillatoria laminosa Ag. in Flora, x. 633 (1827). 

 GoLUNGO Altg. — Ad terram limosam post pluvias ; Dec. 1855. 

 No. 166. 



4. P. Corium Gomont in Journ. de Botaniq. iv, 365 (1890) ; in 

 Ann. Sci. Nat., I.e., 172-3, t. 5, f. 1, 2 (1892); W. et G. S. West, I.e. 



Oseillatoria Corium Ag. Dispos. Algar. Suec. 36 (1812). 



Sierra Leone. — Cum Oseillatoria animali ad parietes humid, 

 verticales urbis Freetown freq. latissimis plagis atro-nitentibus parietes 

 obducens ; Sept. 1853. No. 167- 



5. P. papyraceum Gomont in Journ. de Botaniq. iv. 355 (1890) ; 

 in Ann. Sci. Nat., I.e., 173-5, t. 5, f. 3, 4 (1892); W. et G. S. 

 West, I.e. 



Oseillatoria papyracea Ag. Syst. Algar. 61 (1824). 



Sierra Leone. — Ad muscos (hepaticas) humidos in domicil. 

 parietibus verticalibus urbis Freetown frequens tempore pluvio ; Sept. 

 1853. No. m. 



6. P. Retzii Gomont in Journ. de Botaniq. iv. 355 (1890); in 

 Ann. Sci. Nat., I.e., 175-8, t. 5, f. 6, 9 (1892); W. et G. S. 

 West, I.e. 



Oseillatoria Retzii Ag. Dispos. Algai*. Suec. 36 (1812). 

 PuNfio ANDONiio. — Ad muscos (Jungermannias) submersas in rivulo 

 Tangue pr. Catete ; May 1857. No. 165. 



