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Many species of orchids have hairs on the labellum. These can be simple structures or with the apex swollen into a gland. They are often a prominent feature in flowers that are pollinated by small flies.
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On margins only: the hairs are restricted to the margins of the labellum. |
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Undersurface: very few species of orchids have hairs on the underside of the labellum. |
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On lamina (main part of the labellum): the upper surface of the labellum is adorned with hairs. |
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Restricted to apex: the hairs are restricted to the labellum apex. |