The various contrivances by which orchids are fertilized by insects.
Darwin, Charles,
1809-1882
text
book
New York,
D. Appleton and Co.,
1877.
1877
2d ed., rev.
English
Fertilization of plants
Orchids
QK926 .D24 1877
http://www.biodiversitylibrary.org/bibliography/57232
2569857
13003387