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FOC | Family List | FOC Vol. 19 | Annonaceae

9. Mitrephora J. D. Hooker & Thomson, Fl. Ind. 1: 112. 1855.

银钩花属 yin gou hua shu

Authors: Bingtao Li, Aruna D. Weerasooriya & Richard M. K. Saunders

Uvaria sect. Mitrephorae Blume, Fl. Javae, Annonaceae, 13. 1830; Kinginda Kuntze.

Trees to 40 m tall. Petiole short; leaf blade venation arcuately looped near margin, secondary veins 4-24 on each side of midvein. Flowers terminal, leaf opposed, or extra-axillary, solitary or in cymes; sympodial rachides simple or branched, internodes short or long. Flowers bisexual, pendent. Pedicel short or long, with basal bracts and submedian bracteoles. Sepals 3, valvate, basally ± connate. Petals 6, in 2 whorls, free, with each whorl valvate; outer petals usually smaller than inner petals, without a basal claw; inner petals with base clawed, apically connivent to form a mitriform dome. Stamens many; anthers cuneate, extrorse; connectives apically truncate. Carpels few to many, free; ovules several per carpel, in 2 series. Fruit apocarpous; monocarps sessile or stipitate, globose, obovoid, or cylindric, sometimes longitudinally ridged, smooth or rarely warty.

About 47 species: tropical and subtropical Asia; three species in China.

1 Petioles and abaxial surface of leaf blades densely hairy; bracteoles 4.5-7.5 × 3.5-9 mm; sepals 5-9 × 5-9 mm; carpels 12-17; monocarps subglobose, without a longitudinal ridge.   1 M. tomentosa
+ Petioles and abaxial surface of leaf blades subglabrous to sparsely hairy; bracteoles 1.5-3.5 × 1-4 mm; sepals 3-4 × 3-4.5 mm; carpels 7-10; monocarps ± elongate, with a longitudinal ridge   (2)
2 (1) Leaf blade secondary veins 7-9 on each side of midvein; outer petal margin never undulate; monocarp stipes 1.4-1.8 cm.   2 M. macclurei
+ Leaf blade secondary veins 10-14 on each side of midvein; outer petal margin undulate in older flowers; monocarp stipes 0.9-1.3 cm.   3 M. wangii

Lower Taxa


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