The various contrivances by which orchids are fertilised by insects /
Darwin, Charles,
1809-1882
text
book
New York :
Appleton,
1886.
1877
2d ed., rev.
English
Fertilization of plants
Orchids
QK926 .D24 1886
http://www.biodiversitylibrary.org/bibliography/60877
13003387
DLC