207 
No specimens of B. Fitzgeraldi, B. cavernosum or B. calcareum 
have been accessible and the original descriptions are quoted. 
EXCLUDED SPECIES. 
M. Cardot was the first to discover that Brachythecium Don- 
nelli Aust. Bot. Gaz. 4: 162, is not a Brachythecium at all, but a 
Stereophyllum, closely related to Stereophyllum leucostegium (Brid.) 
from Mexico and the Antilles. 
Professor Warming also communicated specimens of the Green- 
land plant referred to Brachythecium trachypodium (Funck) Br. & 
Sch. (L.Gr $ 330) diey are stetile and I can see. no 
reason why they should be referred to B. trachypodium rather 
than to the closely related B. velutinum. 
Specimens of Ren. & Card. Musc. Am. Sept. Exs. 108. (P. 
latifolium Lindb. Philib.), seem to me to be nothing but slender 
forms of B. rivulare. The stem leaves have the characteristic 
short acumination of that species. The plants do not agree either 
with Limpricht’s description of B. /atifolium, or with European 
specimens of that species determined by Brotherus and kindly com- 
municated by M. J. Cardot. 
