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NOTES ON NOMENCLATURE. V. 
Elizabeth G. Britton. 
Fissidens decipiens has been giving a great deal of trouble, and masquer- 
ading under various names indicating that it is doubtful and deceitful, as 
well as possessed of other well-marked characters. Its synonymy seems to 
be as follows: 
Fissidens dubius Beauv. Prod. 57. 1805? 
Skitophyllum marginatum La Pyl. Desv. Journ. Bot. 4:163. 1814. 
Skitophyllum adiantoides marginatus La Pyl. 2. c. 4 : 164. 1814. 
F. adiantoides marginatus Brid. Bryol. Univ. 2:704. 1827. 
F. cristatus Wils. Hook. Journ, Bot. 9:294. 1857 ? 
F. decipiens De Not. Cronaca briol. ital. 2:98. 1866. 
F. rupestris Wils. MusciBrit.no. 311, Jag. Enum. Fiss. 25. 1869. 
F. Floridanus L. & J. Proc. Am. Acad. 14:137. 1879. Man. 83. 1884. 
Of the names given above, the first, second and third were founded on 
the same specimens collected in] America by Beauvois, but without record of 
the type locality. The specimens were also sterile, and La Pylaie states 
that they do not appear to differ from Fissidens adiantoides , except in their 
shorter stems, and the remarkably hyaline border of their leaves, which are 
otherwise the same, having the serrate apex. He referred them to this 
species as a variety, but cites the name given by Beauvois and his descrip- 
tion. When Dr. Barnes was studying the genus he made an effort to see the 
types, but failed to find them: the cotypes may exist at Paris in the Herbar- 
ium of La Pylaie. 
Fissidens cristatus was described from specimens collected in the 
Khasia Mts. of India at an altitude of 5,000 ft. , and the specimens have strongly 
recurved leaves, They appear to be somewhat different, and may prove to 
be a good species. They are larger and coarser than F. decipiens and the 
leaves have larger cells. 
Fissidens decipiens was described from Italian specimens, of which 
there are authentic duplicates from the type locality in the Jaeger herbar- 
ium. In studying some specimens from Florida it struck me that the 
descriptions of F. decipiens and F. Floridanus did not differ materially, so 
I wrote to Kew asking for comparisons. Both Mr. C. H. Wright and Mr. E. 
S. Salmon agree that they are the same species. Fissidens Floridamis has 
not been known in America for twenty years, and there are no specimens 
preserved in the James Herbarium, but authentic specimens were sent to 
Schimper and are now at Kew. This disposes of another superfluous name, 
and renders it more than probable that the oldest name belonging to this 
species is Fissidens dubius , Beauv. New York Botanical Garden. 
NOTES ON SOME NORTH AMERICAN MOSSES. II. 
Jules Cardot. 
Grimmia lamellosa C. Mull, in Bot, Zeit,, 318, 1S54. 
Limpricht cites erroneously this name as a synonym for G. alpestris 
