Dear Sir
Mr Veitch has kindly sent me a Catasetum & I think I at last understand its mechanism.2 I shd. like to quote what you said;3 but I am anxious to hear (if you will kindly inform me) whether you often touched the “trigger”; & if so whether you did it with your finger & in this case, whether the sticky hair or gland always or generally hit your finger so as to stick to it. I shd. be very much obliged for this little bit of information.
Dear Sir | Yours faithfully | Charles Darwin
Did you ever notice any nectar in the pouch or basin in the labellum of Catasetum? Have you cultivated Stanhopea and you ever notice nectar in the cup of this genus? or in Oncidium?
Please cite as “DCP-LETT-3285F,” in Ɛpsilon: The Charles Darwin Collection accessed on