220 



Evans: Notes on genus Herberta 



Pennsylvania: Stony Creek, Somerset County, F. Wolle. 



Virginia: summit of White Top Mountain, Washington 

 County, May, 1892, ^. if. Vail & E. G. Britton 9, 91, and numer- 

 ous unnumbered specimens; same locaHty and date, /. K. Small 

 77, 79 (listed by Small & Vail, as H. adunca, in Mem. Torrey 

 Club 4: 193. 1894). 



West Virginia: Tibbs Run, Monongalia County, September, 

 1892, C. F. Millspaugh 1659 (listed by Millspaugh, as H. adunca, in 

 Prelim. Cat. Fl. W. Va. 496. 1892); Quarry Run, Monongalia 

 County, 1903, A. LeR. Andrews. 



Figs. 21-29. Herberta tenuis Evans 

 21-25. Leaves, X 40. 26. Transverse section of a mature stem, X 225. 

 27. Cells from the lower part of a leaf, including the vitta just above the forking, 

 X 225. 2S. Cells from the upper part of a doisal leaf-division, X 225. 29. Cells 

 from the apex of a division, X 225. FiG. 21 was drawn from specimens distributed 

 in Austin's Hep. Bor.-Amer. 82; the remaining figures, from the type specimen. 



North Carolina: "in montibus Carolinae," F. Michaux 

 (listed by Michaux, as Jungermannia sertularoides , in Fl. Bor. 

 Amer. 2: 278. 1803), the label reading as follows: "Junga ser- 

 tularoides Rich. Fl. b. Am. a Jung, trichophylla vox aut non 

 distincta! Hb. Hooker"; "in montosis editissimis Carohnarum," 



