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FOC | Family List | FOC Vol. 24 | Liliaceae

44. Heteropolygonatum M. N. Tamura & Ogisu in M. N. Tamura et al., Kew Bull. 52: 950. 1997.

异黄精属 yi huang jing shu

Chen Xinqi (陈心启 Chen Sing-chi); Minoru N. Tamura

Herbs perennial, rhizomatous, sympodial, epiphytic. Rhizome horizontally creeping, often branched, moniliform, fleshy. Stem ascending or pendulous, simple. Leaves cauline, alternate, shortly or indistinctly petiolate, entire. Inflorescences terminal and often also axillary, racemose or subumbellate, often 1- or 2-flowered, sometimes 3--6-flowered. Flowers bisexual, pendulous, ebracteate. Perianth pinkish or whitish, tubular or campanulate; segments 6, imbricate, subequal, connate proximally for 1/5--5/6 their length. Corona absent. Stamens 6, in 2 whorls, outer ones shorter than or equaling inner; filaments filiform, smooth or verrucose, proximally adnate to perianth for most of their length; anthers lanceolate to ovate, introrse. Ovary ellipsoid, 3-loculed. Style slender; stigma capitate or 3-lobed, small. Fruit a berry, orange, globose to ovoid.

* Four species: China.

1 Stem pendulous, 50--100 cm; leaf blade fasciate-falcate, 20--40 cm   4 Heteropolygonatum pendulum
+ Stem ascending, 0.5--40 cm; leaf blade lanceolate, oblong, ovate-oblong, or oblanceolate, 3.5--14 cm.   (2)
2 (1) Stem 20--40 cm; leaves 6--9; outer stamens shorter than inner ones   1 Heteropolygonatum roseolum
+ Stem 0.5--14 cm; leaves 1 or 2; outer stamens equaling inner ones.   (3)
3 (2) Inflorescence 2--4-flowered; stem 5--14 cm; leaves 2, thickly papery; perianth 6--8 mm; anthers 0.7--1 mm   2 Heteropolygonatum ginfushanicum
+ Inflorescence 1-flowered; stem 0.5--3.5 cm; leaf 1(or 2), leathery; perianth 9--12 mm; anthers 1.5--2 mm   3 Heteropolygonatum xui

Lower Taxa


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