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18. Alseodaphne Nees in Wallich, Pl. Asiat. Rar. 2: 61, 71. 1831.
油丹属 you dan shu
Authors: Xi-wen Li, Jie Li & Henk van der Werff
Evergreen trees. Terminal buds scaly. Leaves alternate, always clustered near apex of branchlet, pinninerved, often turning black when dry. Inflorescence axillary, paniculate or racemose; bracts and bracteoles deciduous. Flowers bisexual, 3-merous. Perianth tube short; perianth lobes 6, subequal or outer 3 smaller, slightly dilated after anthesis but absent in fruit. Fertile stamens 9, in 3 whorls; filaments of 1st and 2nd whorls glandless, those of 3rd whorl each with 2 glands at base; anthers 4-celled; cells of 1st and 2nd whorls introrse, those of 3rd whorl extrorse or upper 2 lateral and lower 2 extrorse. Staminodes 3, of innermost whorl, very small, nearly sagittate. Ovary partly immersed into shallow perianth tube; style often as long as ovary; stigma small, inconspicuous, discoid. Fruit black or purplish black when mature, ovoid, oblong, or subglobose; fruit stalk red, green, or yellow, sometimes nearly cylindric, fleshy, pulpy, always warty, truncate at apex.
Fifty species or more: Cambodia, China, India, Indonesia, Laos, Malaysia, Myanmar, Philippines, Sri Lanka, Thailand, Vietnam; ten species (seven endemic) in China.
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| 1 |
Pedicels up to 10 mm; scales of terminal bud imbricate on margin. |
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1 A. gracilis |
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Pedicels short, less than 8 mm; scales of terminal bud not imbricate on margin |
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(2) |
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| 2 (1) |
Terminal bud large, ovoid, up to 2.5 cm; fruit large, oblong, up to 3 cm in diam.. |
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2 A. sichourensis |
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Terminal bud small, ovoid or globose, ca. 2 mm, usually inconspicuous; fruit oblate, globose, ovoid, or oblong, below 3 cm in diam. when it is oblate, globose, or ovoid, but up to 5 cm in diam. when it is oblong, in latter case terminal bud inconspicuous |
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(3) |
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| 3 (2) |
Branchlets robust, ca. 7 mm in diam., wrinkled, with dense leaf scars near top; fruit stalk warty; fruit oblate. |
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3 A. rugosa |
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Branchlets slender, below 3 mm in diam., not wrinkled; fruit stalk not conspicuously warty; fruit not oblate |
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(4) |
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| 4 (3) |
Branchlets conspicuously gray when dry |
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(5) |
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Branchlets not gray when dry |
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(7) |
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| 5 (4) |
Inflorescence brown pilose, 2-3(-4) cm. |
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6 A. yunnanensis |
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Inflorescence glabrous, 3.5-8(-12) cm |
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(6) |
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| 6 (5) |
Leaf blade narrowly elliptic, 6-10(-16) × 1.5-3.2(-4.2) cm, leathery, shallowly foveolate adaxially, lateral veins 12-17 pairs; fruiting pedicel 3-8 mm, not verrucose. |
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4 A. hainanensis |
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Leaf blade oblong or oblanceolate-oblong, 5-13 × (0.8-)1.2-2.8 cm, papery, hardly foveolate on both surfaces, lateral veins 7 or 8 pairs; fruiting pedicel 5-7 mm, densely grayish linear verrucose. |
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5 A. huanglianshanensis |
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| 7 (4) |
Panicle much longer than leaf blade; leaf blade hairy abaxially |
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(8) |
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Panicle shorter than or as long as leaf blade; leaf blade glabrous abaxially |
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(9) |
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| 8 (7) |
Leaf blade oblong or lanceolate-oblong, 6-14 × 2.2-3.8 cm, not foveolate on both surfaces, sparsely yellowish brown pubescent abaxially; fruit globose, up to 2.2 cm in diam.. |
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7 A. marlipoensis |
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Leaf blade oblong, 12-24 × 6-12 cm, conspicuously foveolate on both surfaces, rusty pubescent abaxially; fruit oblong, ca. 2.8 cm. |
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8 A. andersonii |
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| 9 (7) |
Branchlets, leaf blades, and panicles all glabrous; leaf blade elliptic to oblong, 10.5-17 × 4-6.5 cm, not green-white abaxially. |
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9 A. hokouensis |
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Young part of branchlet as well as panicles densely brown tomentulose; leaf blade obovate-oblong or oblong, 14-26 × 6-15 cm, green-white abaxially when young. |
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10 A. petiolaris |
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Lower Taxa
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