File:On the Various Contrivances by Which British and Foreign Orchids are Fertilised by Insects, and on the Good Effects of Intercrossing - Fig 2.png

Summary

Description
English: A. Pollen-mass of O. Mascula, when first attached. B. do. do. after the act of depression.
Date
Source https://archive.org/details/variouscontriv00darw/page/n31
Author Charles Darwin

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Note: This tag should not be used for sound recordings.PD-1923Public domain in the United States//commons.wikimedia.org/wiki/File:On_the_Various_Contrivances_by_Which_British_and_Foreign_Orchids_are_Fertilised_by_Insects,_and_on_the_Good_Effects_of_Intercrossing_-_Fig_2.png

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