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FOC | Family List | FOC Vol. 14 | Aucubaceae | Aucuba

8. Aucuba himalaica J. D. Hooker & Thomson, Ill. Himal. Pl. t. 12. 1855.

喜马拉雅珊瑚 xi ma la ya shan hu

Trees or shrubs, 3–6(–8) m tall, 5–10 cm in diam.; young branches pubescent; old branches with white oblong lenticels and conspicuous leaf scars. Petiole 2–3 cm, pubescent with thick trichomes; leaf blade narrowly elliptic to elliptic, lanceolate, oblong-lanceolate, oblanceolate, or narrowly lanceolate, 10–15(–20) × (1.5–)3–5(–7) cm, papery, or thinly leathery, abaxially glabrous or pubescent with soft trichomes, or with both soft and stiff trichomes, or with soft trichomes only on midvein, or with thick trichomes on veins, adaxially glabrous, veins raised abaxially, conspicuously impressed adaxially, and connected before reaching margin, base cuneate, margin 4–7-serrulate or 7–9-serrulate on upper 1/3, apex cuspidate for 1–1.5(–3) cm or acuminate. Staminate inflorescences racemose panicles, 8–12(–13) cm, all parts purplish red, with dense soft trichomes when young, upper portion of trichomes purplish red; pedicel 2–2.5 mm, pubescent. Carpellate inflorescences (2–)3–5(–5.5) cm, with dense thick trichomes and reddish brown soft trichomes, all parts reddish purple. Staminate flowers: calyx slightly 4-lobed, lobes rounded, pubescent; petals narrowly ovate, 3–3.5 × ca. 2 mm, apex caudate for 1.5–2 mm; stamens 1–2.5 mm, filaments stout. Carpellate flowers: calyx and petals similar to those of staminate flowers; ovary pubescent with thick trichomes; style stout; stigma slightly 2-lobed; bracteoles 2. Fruit dark red, ovoid-oblong to subellipsoid, sparsely pubescent, 1–1.5 cm, 5–6 mm in diam. Fl. Mar–May, fr. Oct–May.

Forests; 500–1300 m. Guangdong, Guangxi, Guizhou, W Hubei, Hunan, S Shaanxi, Sichuan, Xizang, Yunnan, Zhejiang [Bhutan, N India, N Myanmar, Sikkim].

1 Leaves elliptic, narrowly elliptic, lanceolate, or oblong-lanceolate, abaxially densely pubescent or only veins pubescent with thick trichomes.   (2)
+ Leaves oblanceolate, narrowly lanceolate, or lanceolate, glabrous or abaxially pubescent with short, thin, and soft trichomes.   (3)
2 (1) Staminate inflorescences 8–10(–13) cm; carpellate inflorescences 3–5 cm; fruit ovoid-oblong, 1–1.2 cm; abaxial leaf surface pubescent with thick trichomes on veins.   8a var. himalaica
+ Staminate inflorescences ca. 12 cm; fruiting inflorescences 2–3 cm; fruit subellipsoid, ca. 1.5 cm; abaxial leaf surface densely pubescent with a mix of thin, soft, and stiff trichomes.   8b var. pilossima
3 (1) Leaves oblanceolate, densely pubescent with short, soft trichomes.   8c var. oblanceolata
+ Leaves narrowly lanceolate or lanceolate, glabrous or abaxially pubescent with short, soft trichomes on veins.   8d var. dolichophylla

Lower Taxa


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