Image from the Biodiversity Heritage Library.
Contributed by Harvard University Botany Libraries.
| www.biodiversitylibrary.org
Transcription
294
Form annuli.
8/5/41
Slide no. 1.
Figures = 3.75 mm
# 1
# 2 D. clintoniana , Lake Page, Benedict in 1932
# 3 D. spinulosa , Staten Island, Dorell 3515
# 4 D. intermedia , Dorell 4053, Staten Island
# 5 D. spinulosa var. americana Dorell 5801 Stamford N.Y.
# 6