Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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CROSSOSOMATACEAE

CROSSOSOMA FAMILY

James R. Shevock

Shrubs
Stem generally glabrous; twigs or branchlets generally thorny
Leaves generally deciduous, simple, small, generally alternate, entire; stipules minute or 0
Inflorescence: flowers solitary
Flower generally bisexual, radial; hypanthium short, mostly forming thick nectary-disk; sepals generally 5(3–6), free; petals ephemeral, generally 5(3–6), free, generally white; stamens 4–50, attached to nectary-disk; pistils 1–9, simple, styles short, stigma head-like, ovules generally 2–many
Fruit: follicles 1–9
Seeds brown to black, with an aril
Genera in family: 3 genera, 8 species: w US, Mex (Apacheria of AZ, NM has 1 sp.)
Reference: [Thorne & Scogin 1978 Aliso 9:171–178]
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