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Eucrosia
''Eucrosia'' is a genus of herbaceous, perennial and bulb, bulbous plants in the Amaryllis family (Amaryllidaceae, subfamily Amaryllidoideae) distributed from Ecuador to Peru. The name is derived from the Greek , beautiful, and , a fringe, referring to the long stamens. The genus contains eight species. ''Phaedranassa'' and ''Rauhia'' are the genera most closely related to ''Eucrosia''.
Description
All the members of the genus are bulbous. The leaves are deciduous, with characteristic long petiole (botany), petioles and elliptical or ovate blades (laminae), up to 25 cm wide; they may or may not be present when the flowers are produced. The inflorescence is an umbel of 6–30 weakly to strongly zygomorphic flowers, tubular at the base, green, yellow or red in colour. The stamens hang downwards (i.e. are declinate) and have long filaments which in most species form a cup containing nectary, nectaries at the base. The flowers are assumed to be adapted for butterfly pollination, ...
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Amaryllidoideae
Amaryllidoideae (Amaryllidaceae ''s.s.'', amaryllids) is a subfamily of monocot flowering plants in the family Amaryllidaceae, order Asparagales. The most recent APG classification, APG III, takes a broad view of the Amaryllidaceae, which then has three subfamilies, one of which is Amaryllidoideae (the old family Amaryllidaceae), and the others are Allioideae (the old family Alliaceae) and Agapanthoideae (the old family Agapanthaceae). The subfamily consists of about seventy genera, with over eight hundred species, and a worldwide distribution.
Description
The Amaryllidoideae are herbaceous, perennial flowering plants, usually with bulbs (some are rhizomatous). Their fleshy leaves are arranged in two vertical columns, and their flowers are large. Most of them are bulbous geophytes and many have a long history of cultivation as ornamental plants. They are distinguished from the other two Amaryllidaceae subfamilies (Agapanthoideae and Allioideae) by their unique alkaloidal ...
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