Image from the Biodiversity Heritage Library.
Contributed by Harvard University Botany Libraries.
| www.biodiversitylibrary.org
Transcription
No. 979.
M.
West Point, n.y.
56
72 3/4
Navicula americana Ehr.
57 1/2
73 7/8
"
"
45 3/4
62 1/4