Image from the Biodiversity Heritage Library.
Contributed by Harvard University Botany Libraries.
| www.biodiversitylibrary.org
Transcription
a, Pterocera, 7th.
No phenotypic difference exists between this & (A. California, dist., - A.
epimia, Fowler.) as in varies in the length of the pedicel & in the relative lengths of
the rachis & spurs.