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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.

 

CELASTRACEAE STAFF-TREE FAMILY

Michael A. Vincent & Barry A. Prigge


Shrub (climbing or not), tree, thorny or not, generally glabrous. Leaf: simple, opposite or alternate, deciduous to persistent, subsessile or petioled; veins pinnate. Inflorescence: cluster, cyme, raceme, panicle, or 1-flowered, axillary or terminal, bracted. Flower: generally bisexual, radial, small; hypanthium ± cup-shaped; sepals 4–5; petals (0)4–5, free; stamens 4–5, alternate petals, attached below or to rim of disk; ovary superior or ± embedded in disk, 2–5-chambered, placentas axile or basal, style generally 1, short, stigma ± head-like, 2–5-lobed. Fruit: capsule, winged achene, berry, drupe, or nutlet, often 1-chambered. Seed: generally 1 per chamber, arilled.
50 genera, 800 species: worldwide, especially southeastern Asia; some ornamental (Celastrus, Euonymus, Maytenus, Paxistima). [Zhang & Simmons 2006 Syst Bot 31:122–137] —Scientific Editor: Thomas J. Rosatti.
Unabridged references: [Brizicky 1964 J Arnold Arbor 45:206–234]

Key to Celastraceae

1. Leaves alternate, entire or toothed; inflorescence terminal or axillary, 1–many-flowered; petals green-white or white

2. Leaves toothed; inflorescence axillary, 1–5-flowered; petals green-white ..... MAYTENUS

2' Leaves entire; inflorescence terminal, many-flowered; petals white ..... MORTONIA

1' Leaves opposite, ± toothed; inflorescence axillary, 1–5-flowered; petals red- or purple-brown

3. Shrub, small tree, 2–6 m, deciduous; leaf blade 30–140 mm; flower parts in 5s ..... EUONYMUS

3' Shrub, < 1 m, evergreen; leaf blade 8–34 mm; flower parts in 4s ..... PAXISTIMA

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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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