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FOC | Family List | FOC Vol. 11 | Anacardiaceae | Toxicodendron

12. Toxicodendron delavayi (Franchet) F. A. Barkley, Amer. Midl. Naturalist. 24: 680. 1940.

小漆树 xiao qi shu

Shrubs, 0.5-2 m tall; branchlets purplish red, often glaucous, glabrous; buds glabrous or minutely pubescent. Petiole 3.5-5 cm; leaf blade imparipinnately compound, to 13 cm; leaflets 5-11, opposite; leaflet petiolule 1-2 mm; leaflet blade ovate-lanceolate to linear-lanceolate, 3.5-9 × 0.5-2.5 cm, papery, sparsely pubescent when newly formed to eventually glabrous on both surfaces, base ± oblique, broadly cuneate or rounded, margin entire to sparsely serrate distally, apex acute to acuminate, lateral veins 12-16 pairs, prominent on both surfaces. Inflorescence racemose, 6-8.5 cm, glabrous; peduncle slender, 4-5 cm; floral subtending bracts lanceolate, ca. 1 mm. Pedicel ca. 1 mm; flowers light yellow, ca. 2 mm in diam. Calyx glabrous, lobes triangular, ca. 0.8 mm, obtuse apically. Petals oblong, ca. 2 mm, with brown featherlike venation pattern. Stamens ca. 1.5 mm; filaments linear, equal to anthers in length; anthers oblong. Disk 10-lobed. Ovary ovoid, ca. 1 mm in diam., glabrous. Drupe oblique, slightly compressed, ca. 6 mm in diam., glabrous, lucid.

● Hill and mountain forests, thickets; 1100-2500 m. SW Sichuan, C and N Yunnan.

1 Leaflets 9-11 or more; buds and newly formed leaflets sparsely pubescent.   12c var. quinquejugum
+ Leaflets 5-9; buds and leaflets glabrous   (2)
2 (1) Leaflets ovate-lanceolate to lanceolate, 3.5-5.5 × 1.2-2.5 cm, base slightly oblique.   12a var. delavayi
+ Leaflets narrowly lanceolate to linear-lanceolate, 4-9 × 0.5-1.5 cm, base conspicuously oblique.   12b var. angustifolium

Lower Taxa


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