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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

MAYTENUS MAITEN
[Shrub] tree, erect. Leaf: alternate, persistent, spreading, leathery, toothed; base, tip acute. Inflorescence: axillary clusters, 1–5-flowered. Flower: parts in 5s; hypanthium broad, flat; petals green-white [yellow]; disk fused to hypanthium, fleshy, ± green; ovary superior, ovoid, stigma lobes 2–4[5], stout, spreading. Fruit: capsule, loculicidal, 2[5]-valved, compressed-spheric, green to ± yellow. Seed: 1–2, brown; aril [orange to] red.
200 species: especially tropical southern hemisphere, South America, Africa. (Aboriginal name)

M. boaria Molina MAITEN TREE
NATURALIZED
Plant to 15 m, branches pendent. Stem: twigs green, in age gray-brown. Leaf: petiole 2–5 mm; blade 15–45 mm, ± lanceolate, flat. Flower: unisexual or bisexual, hypanthium 1–1.2 mm; sepals 0.5–0.7 mm, tips obtuse; petals 1.5–3 mm, obtuse or ± acute. Fruit: 6–9 mm, glabrous.
Scrub regrowth; 130–400 m. San Francisco Bay Area (Alameda Co.); native to Argentina, Chile. Germinates profusely after fire; control efforts ongoing. Apr–May [Online Interchange]

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on Dec 22 2014
Citation for this treatment: [Author of taxon treatment] 2013. Maytenus, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=77417, accessed on Dec 22 2014

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Geographic subdivisions indicated for the distribution of Maytenus boaria Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.