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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.

 

CROSSOSOMATACEAE CROSSOSOMA FAMILY

Robert E. Preston & James R. Shevock


Shrub, small tree. Stem: generally glabrous; branchlets or twigs generally thorny. Leaf: generally deciduous, simple, generally small, generally alternate, entire; stipules minute or 0. Inflorescence: flowers 1. Flower: generally bisexual, radial; hypanthium short; sepals, petals generally 5(3–6), free; petals generally white, ephemeral; stamens 4–50, on or around disk; pistils 1–9, simple, styles short, stigmas head-like, ovules generally 2–many. Fruit: follicles, 1–9. Seed: brown to black, arilled.
4 genera, 9 species: western United States, Mexico. [Sosa & Chase 2003 Syst Bot 28:96–105] —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Thorne & Scogin 1978 Aliso 9:171–178; Sosa & Chase 2003 Syst Bot 28:96–105]

Key to Crossosomataceae

1. Flowers terminal; stamens 15–50; fruit 1–9, 8–20 mm, stalked ..... CROSSOSOMA

1' Flowers axillary; stamens 4–10, fruit 1–3, 1–5 mm, sessile ..... GLOSSOPETALON

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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