Notes on the genus Herberta, with a revision of the species known from Europe, Canada and the United States
By: [by] Alexander W. Evans
Series: Contributions from the Osborn botanical laboratory, Yale university 1917 -- no. 3
Published: 1917
Place of publication: n.p
Language: eng
Number of pages: 222
Subjects: Herberta
Notes: Caption title.

"From Bulletin of the Torrey botanical club, 44; 191-222, pl. 8, 29 text-figs. 14 Ap. 1917."