Vegetative key to the families

Vegetative Key Vegetative key to the families

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EPIPHYTES on trees or rocks

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Leaves with parallel venation, or terete. Pseudobulbs and aerial roots with velamen often present (Fig. 41) Orchidaceae

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Plants epiphytic on trees, logs, rocks

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Leaves short, usually no more than 5 times longer than broad

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Pseudobulbs usually present. Lateral sepals dilated at the base and united with the projecting foot of the column to form a spur. Labellum not spurred

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Pseudobulbs absent