ee m ee. bee | ae ee ene | m OS th a oL. -* 1 
1914] Evans,— Notes on New England Hepaticae,— XI 69 
studied but also the material distributed by Austin in his Hep. Bor.- 
Amer. No. 9, and a series of specimens from New England, New York, 
and Pennsylvania. At the same time the point was strongly empha- 
sized that Sullivant’s specimens were to be considered the type of the 
species. When Stephani, several years later, monographed the genus 
Plagiochila for his “Species Hepaticarum" he expressed the opinion 
that P. Sullivantii, as described and figured in the “ Notes," was an 
aggregate and included two distinct species, an opinion with which 
the writer is now disposed to concur. Instead, however, of reserving 
the name P. Sullivantii for the type of the species, he applied it to the 
plants from New England, Pennsylvania, and North Carolina. For 
Sullivant's specimens he chose the manuscript name P. allegheniensis 
Evans, a name given to these plants by the writer at the beginning 
of his studies on Plagiochila but discarded in favor of Gottsche's 
name when the results of these studies were published. Stephani's 
course does not seem warranted because it excludes from Gottsche's 
species the very specimen that was definitely cited as the type at the 
time the species was published. It therefore seems necessary to 
restrict the name P. Sullivantii so that 1t may include this type speci- 
men and to give the species segregated from P. Sullivantii a new name 
as indicated above. Austin’s specimens distributed in Hep. Bor.- 
Amer. No. 9, may then be regarded as the type of P. ustini. They 
were collected on “shaded steep rocks in mountainous regions," 
and probably came either from the White Mountains or from New 
York. The following more definite stations for the species may like- 
wise be quoted: White Mountains, New Hampshire (T. P. James); 
Naugatuck, Branford, and Redding, Connecticut (4. W. E.) !; Slide 
Mountain, Ulster County, New York (E. G. Britton); Adirondack 
Reserve, New York (E. G. Britton); Canadensis, Pennsylvania (E. G. 
Britton); Quarry Run, West Virginia (A. LeRoy Andrews). The speci- 
mens from North Carolina must remain doubtful for the present. Of 
the figures published by the writer in connection with P. Sullivantii, 
the following represent P. Austini: pl. 15, f. 18, 20, 21; pl. 16, f. 1-3. 
The narrowly ovate leaves in P. Austini will distinguish it from 
the true P. Sullivantii, where the leaves are distinctly obovate. The 
leaves are sharply spinose-dentate, the number of teeth being usually 
from two to six. In many cases two teeth at the apex of a leaf are 
1 Specimens from Naugatuck, incorrectly labeled ''Beacon Falls" were distributed 
in Underwood & Cook's Hep. Amer. No. 111, under the name P. spinulosa. 
