Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
| www.biodiversitylibrary.org
Transcription
Douglas Fir cones
Those that I collected, though rather, fresh, seem
to already have shed most of their seeds. Some were
collected, however. Of four cones, the number of
scales each had was 40,38,36, and 32; thus the
total maximum number of seeds any could have
would be 40×2(seeds/scale)=80. The seeds
were very small, and will be weighed later.