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Resurrection of Themidaceae for the Brodiaea alliance, and Recircumscription of Alliaceae, Amaryllidaceae and Agapanthoideae

Michael F. Fay and Mark W. Chase
Taxon
Vol. 45, No. 3 (Aug., 1996), pp. 441-451
DOI: 10.2307/1224136
Stable URL: http://www.jstor.org/stable/1224136
Page Count: 11
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Resurrection of Themidaceae for the Brodiaea alliance, and Recircumscription of Alliaceae, Amaryllidaceae and Agapanthoideae
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Abstract

The family Themidaceae Salisb. is resurrected and recircumscribed. It consists of c. 10 genera of cormous plants principally from western N. America (British Columbia to northern Guatemala). These had been included in Alliaceae, as tribe Brodiaeeae (subfamily Allioideae), but recent molecular and anatomical studies indicate that the group merits familial status. Petronymphe is not a member of this group but rather belongs in Anthericaceae. Agapanthus is misplaced in Alliaceae and, despite its superior ovary, should be considered a member of Amaryllidaceae, as subfamily Agapanthoideae. Alliaceae, Amaryllidaceae, and Agapanthoideae are recircumscribed, and Tulbaghieae raised to subfamilial status.

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