—66— 
Tortula aciphylla (B. & S.) Hartm. No. 264c, Tunnel Mt., 11-8-13. 
Tortula ruraliformis (Besch.) Dixon, No. 12a, Buffalo Ave., Tunnel Mt., 
10-13-13. No. 128, Aylmer Pass Flats, 9-20-16. No. 144a Simpson Pass 
Summit, 9-6-13. No. 262, Spray Ave. woods, 10-22-10. 
Tortula ruralis (L.) Ehrh. No. 3, Buffalo Ave., 10-10-16. No. 7, no locality, 
1910. No. 125, Sulphur Mt., lo-io-io. No. 180, Hot Springs, 6-20-04. 
No. 182, Sulphur Mt., 7-14-03. No. 197, across from C. P. R. Hotel, 6-27-0. 
No. 261, Spray Ave. woods, 10-22-10. No. 264a, Tunnel Mt., 11-8-13. 
Ulota americana (Beauv.) Lindb. No. 12, Buffalo Ave., Tunnel Mt., 10-13-13. 
No. 250, Sulphur Mt., 9-9-13. 
University of Pittsburgh, 
Pittsburgh, Pa. 
HYMENOSTOMUM IN NORTH AMERICA 
H. The Case of Astomum Sullivantii 
A. LeRoy Andrews 
The first question that arises under the subgenus Astomum is manifestly 
whether or not A. crispum (Hedwig) Hampe of Europe occurs in America. 
It has generally been treated as a species of the three northern continents: 
Europe, Asia and North America. Attempts have at the same time been made to 
separate forms in all three continents, which however like many proposed new 
moss-species have served to obscure rather than clarify. The American species 
which have been subject to confusion with A. crispum are A. Sullivantii Bruch 
& Schimper and A. nitidulum Bruch & Schimper. The tendency has been 
growing of late to refer all North American specimens of this type to A. Sul- 
livantii^. With this I find my own results entirely in agreement. The only 
supposedly North American specimen that I have seen that must apparently be 
referred to A. crispum is one now in the herbarium of the New York Botanical 
Garden, which, according to the label, came from the Mitten herbarium, where 
it was included in the cover of Weisia convolutacea'^. It is further labeled as 
No. 46 of the Musci Bor. Amer. Exsicc. of Sullivant and Lesquereux (2nd ed.). 
This number is however, in the other sets which I have seen, not the same 
thing, but apparently A. Sullivantii as named. I assume then that there has 
at some stage been a mixing of labels and that the Mitten specimen is a Euro- 
pean, probably an English one, it closely resembling other English specimens. 
Under the circumstances it is doubtless justifiable to exclude A. crispum as a 
1 Even Georg Roth (Aussereuropaische Laubmoose, i, 185. 191 1). who did not aspire to be 
primarily a critic of species, suggested this relation, though figuring both A. Sullivantii and 
A. nitidulum separately. 
2 One of Mitten's species referable to A. mullicapsulare according to Braithwaite. 
