Acontia luctuosa with seven pairs of pollinia of Orchis pyramidalis on its proboscis. From Charles Darwin 'The Contrivances by which Orchids are Fertilized by Insects', London, 1899 (second edition)

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Keywords: 1899, acontia, archival, archive, botany, charles, contrivances, darwin, fertilized, historical, history, insect, insects, london, luctuosa, natural, orchids, orchis, pairs, pollinia, proboscis., pyramidalis, science

Acontia luctuosa with seven pairs of pollinia of Orchis pyramidalis on its proboscis. From Charles Darwin 'The Contrivances by which Orchids are Fertilized by Insects', London, 1899 (second edition)

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