220 Evans: NOTES ON GENUS HERBERTA | 
PENNSYLVANIA: Stony Creek, Somerset County, F. Wolle. 
VIRGINIA: summit of White Top Mountain, Washington 
County, May, 1892, A. M. Vail & E. G. Britton 9, 91, and numer- 
ous unnumbered specimens; same locality and date, J. K. Small 
77,79 (listed by Small & Vail, as H. adunca, in Mem. Torrey 
Club 4: 193. 1894). 
WEst Vircinia: 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. 
A \ au 
Fics. 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. 28. Cells from the upper part of a dorsal 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 Carolinarum,” 
