UGANDA MOSSES COLLECTED BY R. DUMMER 

 AND OTHERS 



By H. N. DIXON, M. A., F. L. S. 

 (With One Plate) 



Mr. R. Dummer, who has been collecting for some years in the 

 Uganda Protectorate, has from time to time made gatherings of 

 mosses. Some of these have been received by the United States 

 National Museum, and these, which form the principal material of 

 the present paper, have been entrusted to me for determination. A 

 few others have been sent to me from the British Museum, to be 

 incorporated in this report, and one or two I have received direct 

 from Mr. Dummer. I have included also a few plants collected 

 recently in Uganda by Mr. J. D. Snowden, and sent to me by Mr. W. 

 H. Pearson. 



Although not numerous, Mr. Diimmer's mosses contained several 

 novelties, the most interesting being a new species of Cyathophorum, 

 a small and beautiful genus hitherto unknown to Africa, confined 

 in fact to southern and eastern Asia and the Pacific and Austra- 

 lasian regions. 



L'nless otherwise specified the types of the new species described 

 are in the United States 'National Herbarium. 



DICRANACEAE 



TREMATODON INTERMEDIUS Welw. & Dub. 



Damp roadside, alt. 4,000 ft., Luga, July, 1914, Dummer 971. 

 Low grassland swamp, Nagoze, alt. 4,000 ft., Aug., 1916, Dummer 

 2963. Both c. fr. 



LEUCOBRYACEAE 



OCTOBLEPHARTJM ALBIDUM (L.) Hedw. 



Rocky ledges, Jumbwa, alt. 4,000 ft., Jan.-Feb., 1917, Dummer 

 3078 ; c. f r. 



Smithsonian Miscellaneous Collections. Vol. 69, No. 8 



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