-43— 
Massee. I do not know upon what species of mosses Cladosporlum 
epibryum grows, since Cooke (1. c.) gives only the habitat, “on vari- 
ous mosses. United States, (Mrs. E. G. Britton)”. Mrs. Britton 
might make a very welcome note in the BRYOLOGIST concerning 
these species. No mention is made in literature concerning the oc- 
currence of Cladosporlum herbarum upon Buxbaumia viridis. I wish to 
express my most sincere thanks to Dr. Hollos for aid in the de- 
terminations. 
REVIEW OF DISMIER’S REVISION OF PHILONOTIS 
ELIZABETH G. BRITTON. 
The Revision of the genus Philonotis of America by Monsieur Ga- 
briel Dismier* following on his revision** of the European species of 
this genus, will be studied with much interest by many American 
students. This contribution enumerates 20 species and subspecies, 
of which 15 are North American, and only 11 South American. 
Paris Index lists 52, and Brotherus states that there are 74 in Amer- 
ica, of which 67 are endemic, and 23 are credited to North America ; 
eleven of these are not mentioned by M. Dismier, but there is not as 
great a discrepancy in the number of species as would appear, for 
forty names, both printed and manuscript, are reduced to synonyms. 
He states in the preface that there have been too many species de- 
scribed, and many of them on specimens without any value. He in- 
stances the confusion created by C. Muller by his lack of m.oderation, 
and reduces 16 of his names to synonyms, besides 24 of the fourteen 
of other authors. The most notable North American reductions are 
those of P. Muehlenbergii (Schwaegr.) Brid. to P. marchica (Willd.) 
Brid., and P. Macounii L. & J. to cavillaris Lindb. Two new sub- 
species are described, Philonotis americana Dismier under P. seriaia 
(Mitt.) Lindb. which appears to be quite common in the United 
States and British America ; and P. fallax Dismier under P. caespitosa 
Wils. from seven stations in the United States and Canada. There 
are also seven new varieties recognized, five additional ones to our 
flora ; some of these are founded on mere differences in size and 
could be included in a comprehensive specific description. The geo- 
graphical distribution of the species is as follows: Arctic America 1; 
United States and Canada 7; United States and Central America 1; 
Central America, endemic 1; United States, West Indies and South 
America 2; West Indies and South America 1; South America 11; 
cosmopolitan 1, P. fontana. 
The most interesting extensions of range are the occurrence of P. grac- 
illima Adngstr. in Texas, of P. sphaerocarpa in Florida and of P. 
tenella and its varieties in Louisiana and Florida. The following North 
* Bull. Soc. Bot. de France 10. Memoires 17 : 17 - 37 . Dec. 1910. 
** Mem. Soc. Nat. des Sci. Cherb. pp. 367-428, 1908. 
