1923] — Evans,—Notes on New England Hepaticae,—XVII 91 
9: 62. 1906, and distributed as B. tricrenata [corrected label] in 
Am. Hep. 39); East River Falls, above Lake Colden, and Lake 
Mohonk, A. Lorenz. Virginia: summit of White Top, 5678 ft. alt., 
E. G. Britton 1, J. K. Small 52, 55, 56, 79 (listed as B. deflexa by 
Small & Vail, Mem. Torrey Club 4: 193. 1894). West Virginia: 
Tibbs Run, Monongalia County, C. F. Millspaugh (listed as B. 
deflexa by the collector in Prelim. Fl. West Virginia 496); road to 
Cheat View, E. M. Fling; Spruce, Pocohontas County, F. W. Gray 66. 
North Carolina: Grandfather Mountain, G. F. Atkinson 11579 (listed 
as B. tricrenata by Andrews, Bryologist 17: 60. 1914—the other 
specimens cited here are all referable to the same species in his 
opinion); Roan Mountain, 6000 ft. alt., A. L. Andrews 65. 
Soon after the publication of this species in the Synopsis Hepati- 
carum, Lindenberg and Gottsche! redescribed and figured it, but 
subsequent writers, with few exceptions, have considered its claims 
for recognition unfounded. As early as 1856 Sullivant? expressed 
the opinion that M. denudatum was probably a form of M. deflexum, 
and Austin,’ in 1873, went one step farther by citing it as a simple 
synonym of M. deflexum. Most later students, especially in America, 
have followed Austin’s examples. In 1888, however, Stephani‘ 
reported M. denudatum from Miquelon Island, south of Newfoundland, 
basing his record on specimens collected by E. Delamare and designat- 
ing the species as peculiar to America. Pearson? cited this record 
two years later, under Bazzania denudata, but called attention to 
Austin's divergent views, and Macoun? repeated Pearson's citation 
in his last publication on Canadian hepaticology. Apparently 
Stephani afterwards changed his mind regarding B. denudata, since 
he makes no mention of it whatever in his monograph of the genus 
Mastigobryum, published in 1908, not even including it among the 
synonyms of his M. triangulare. In all probability he placed it in 
the same category as the forma “implexa,” to which allusion has 
already been made. "The fact that Trevisan recognized the species 
by forming the combination “ Bazzania denudata" does not mean 
that he actually studied it. He merely transferred all the species 
of Mastigobryum, as given in the Synopsis, to the genus Bazzania. 
! Spec. Hepat. Mastigobryum 7. pi. 1, f. 1-4. 1851. 
2 In. Gray, Man. Bot. Ed. 2, 702. 1856. 
3 Hep. Bor.-Amer. 80. 1873. 
4 Ip Delamare, Renauld & Cardot, Fl. Miquelonensis 66. 1888. 
5 List Canadian Hepat. 9. 1890. 
6 Cat. Canadiau Pl. 7: 33. 1902. 
