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Concept
Amaryllidoideae
Summary
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.
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 chemistry, inferior ovary, and hollow style.
Amaryllidaceae#Taxonomy
The name Amaryllis had been applied to a number of plants over the course of history. When Linnaeus formerly described the type genus Amaryllis, from which the family derives its name, in his Species Plantarum in 1753, there were nine species with this name. He placed Amaryllis in a grouping he referred to as Hexandria monogynia (i.e. six stamens and one pistil) containing 51 genera in all in his sexual classification scheme.
These genera have been treated as either liliaceous or amaryllidaceaeous (see Taxonomy of Liliaceae) over time. In 1763 Michel Adanson placed them in 'Liliaceae' In 1789 Antoine Laurent de Jussieu placed Amaryllis and related genera within a division of Monocotyledons, using a modified form of Linnaeus' sexual classification but with the respective topography of stamens to carpels rather than just their numbers.
The family Amaryllidaceae was named in 1805, by Jean Henri Jaume Saint-Hilaire.
Official source
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