THE BRYOLOGIST 
Vol. XXV March, 1922 No. 2 
NOTES ON NORTH AMERICAN HEPATIGAE— IX* 
Alexander W. Evans 
(with plate i) 
In the first paper of this series Riccia dictyospora M. A. Howe was reported 
from Missouri,^ and in the second paper R. calijornica Aust. was reported from 
British Columbia.- Howe has lately shown that these reports were based on 
incorrect determinations. He refers the Missouri specimens to his recently de- 
scribed R. McAllisieri^ and the British Columbia specimens to R. Beyrichiana 
Hampe. Attention may be called also to Sphenolobus groenlandicus (Nees) Steph. 
and Lophozia murmanica Kaalaas, two species which have been recognized as 
members of the arctic American flora. According to Miiller* these species are 
indistinguishable from each other and represent a synonym (or perhaps a variety) 
of L. Wenzelii (Nees) Steph., a variable and widely distributed plant of arctic 
and alpine regions. 
In the present paper four other species are reduced to synonymy, a Dip- 
lophyllum from North Carolina and Tennessee is proposed as a new species, 
the perichaetial bracts and perianths of Ptychocoleus heterophyllus are described 
for the first time, and Conklin's report of Gymnomitrium varians as a North 
American plant is confirmed; the remaining species are included to record exten- 
sions of range. 
1. Blasia pusilla L. 
Collected in 1873-75 near Loma Parda, Rio Grande, New Mexico, by the 
botanists of the Wheeler Expedition. This is apparently the first record of 
the species for New Mexico, since it is not included in either of Standley's lists. ^ 
2. Gymnomitrium varians (Lindb.) Schiffn.; Engler & Prantl, Nat. 
Pflanzenfam 1^: 77. 1893. Nardia varians Lindb. Muse. Scand. 9. 1879. Gymno- 
mitrium crassifolium Carringt. Trans. Bot. Soc. Edinburgh 13: 461. pi. 18, f. 
3. 1879. ■ Sarcoscyphus confertus Limpr. Jahresb. Schles. Gesell. Vaterl. Cultur 
57: 312. 1880. Gymnomitrium confertum Limpr. Flora 64: 73. 1881. Mar- 
supella conferia Spruce, Rev. Bryol. 8: 95. 1881. Gymnomitrium ambiguum 
* Contribution from the Osbprn Botanical Laboratory. 
1 BRYOLOGIST 13: 33. 1910. 
2 BRYOLOGIST 14: 84.84. 191 1. 
3 See Bryologst 20: 35. 1917. 
* Rabenhorst's Kryptogamen-FL 6^: 762. 1916. 
5 BRYOLOGIST 18: 81-83. 1915; 19: 64, 65. 1916. 
The January number of The Bryologist was published April 27, 1922. 
