Catasetum, abbreviated as Ctsm. in horticultural trade, is a genus of showy epiphytic Orchids, family Orchidaceae, subfamily Epidendroideae, tribe Cymbidieae, subtribe Catasetinae, with currently 200
Fertilisation of Orchids is a book by English naturalist Charles Darwin published on 15 May 1862 under the full explanatory title On the Various Contrivances by Which British and Foreign Orchids Are F
The title page of the 1877 edition of Fertilisation of Orchids
Musk orchids (Herminium monorchis) in grassland
The bee orchid does not have nectar, but its labellum, imitating a female bee, attracts male bees. Darwin found that in northern Europe, it is mostly self-fertilising.
Head of a moth with its proboscis laden with seven pairs of pollinia from Orchis pyramidalis