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FOC | Family List | FOC Vol. 11 | Celastraceae

6. Maytenus Molina, Sag. Stor. Nat. Chili. 177, 349. 1782.

美登木属 mei deng mu shu

Authors: Quanru Liu & Michele Funston

Shrubs or small trees, usually erect, rarely viny or climbing, glabrous, rarely pubsecent, branches often inermous. Leaves alternate, often disitichous, coriaceous, serrate, petiolate; stipules small, caducous. Inflorescences axillary, fasciculate, cymose, rarely racemose, or flowers solitary. Flowers white-green, bisexual, 5-merous. Disk fleshy, annular, undulate or 5-lobed, intrastaminal; anthers longitudinally dehiscent, introrse. Ovary usually 2-locular, rarely 3- or 4-locular, base confluent with disk; ovules erect, often 1 per locule. Capsule obovoid or ellipsoid, leathery, loculicidally dehiscent. Seeds 1-4, ellipsoid; aril basal to enveloping seed.

About 220 species: tropics and subtropics of America, temperate Australasia; six species (five endemic) in China.


1 Capsule globose or subglobose, inflated; cymes terminal.   1 M. inflata
+ Capsule obovoid or triangular-globose, not inflated; cymes usually axillary   (2)
       
2 (1) Cymes solitary; peduncle longer than 1 cm.   2 M. austroyunnanensis
+ Cymes several, fascicled; peduncle absent or very short, 2-5 mm   (3)
       
3 (2) Capsule 2-valved; cymes often 4-6-fascicled; peduncles, branches, and pedicels tenuous; peduncle 2-5 mm.   3 M. hookeri
+ Capsule 3-valved; cymes numerous, densely fascicled; peduncles, branches, and pedicels slightly sturdy; peduncle very short or absent   (4)
       
4 (3) Leaf blade elliptic or ovate-elliptic; peduncle very short; each cyme 2-4 × branched; thorns erect.   4 M. guangxiensis
+ Leaf blade broadly elliptic or obovate; peduncle usually absent; each cyme 2 or 3 × branched; thorns somewhat decurved   (5)
       
5 (4) Vinelike shrubs; flowers growing on old branches; thorns decurved, hooked; netting veins obvious.   5 M. hainanensis
+ Shrubs; flowers growing on annual or biennial branches; thorns slightly decurved; netting veins not obvious.   6 M. confertiflora

Lower Taxa


 

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