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FOC | Family List | FOC Vol. 14 | Ericaceae | Lyonia

1. Lyonia ovalifolia (Wallich) Drude in Engler & Prantl, Nat. Pflanzenfam. 4(1): 44. 1889.

珍珠花 zhen zhu hua

Shrubs or trees, deciduous or evergreen, 1–4 m tall. Twigs glabrous or pubescent. Buds narrowly ovoid, (1–)3–9(–11.5) mm, glabrous. Petiole 4–9 mm, glabrous or pubescent; leaf blade ovate, narrowly to broadly elliptic, lanceolate, or suborbicular, 3–20 × 2–12 cm, papery to thinly leathery, both surfaces ± with white or brown hairs, rarely abaxially densely white villous on midvein or subglabrous, veins prominently raised to slightly depressed or nearly obscure, base obtuse, cuneate, or sometimes cordate, apex acuminate. Inflorescences 5–20 cm, pubescent; lower 1–3(or 4) bracts leaflike or not. Pedicel 2–10 mm, densely pubescent. Calyx lobes oblong or triangular, 2–6 mm, densely or sometimes sparsely pubescent. Corolla tubular, 8–11 mm, abaxially densely pubescent; lobes ca. 1 mm. Filaments 5–8 mm, pilose, with 2 spurs at apex. Ovary glabrous or pubescent. Capsule globose or ovoid, 3–5 mm in diam., with thick sutures or not, glabrous to densely pubescent. Fl. May–Jun, fr. Jul–Sep. 2n = 24*.

Forests, forest margins, thickets, mountains, open and dry slopes, near hot springs, ravines; 200–3400 m. Anhui, Fujian, S Gansu, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang [Bangladesh, Bhutan, Cambodia, India, Japan, Laos, Malaysia, Myanmar, Nepal, Pakistan, Sikkim, Thailand, Vietnam].

The leaf blade shape and indumentum are highly variable.

1 Ovary and capsule densely pubescent.   (2)
+ Ovary and capsule glabrous.   (3)
2 (1) Twigs, petioles, and leaf blades abaxially and inflorescences ± pubescent.   1e var. hebecarpa
+ Twigs, petioles, and leaf blades abaxially and inflorescences densely tomentose.   1f var. tomentosa
3 (1) Leaf blade abaxially white villous, especially densely so on midvein, base rounded or cuneate to cordate.   1d var. elliptica
+ Leaf blade abaxially ± sparsely white or brown pubescent, base narrowly cuneate to cordate.   (4)
4 (3) Filaments with inconspicuous spurs, 0.1–0.3 mm; inflorescences usually without leaflike bracts.   1b var. rubrovenia
+ Filaments with distinct spurs, ca. 0.5 mm; inflorescence with leaflike bracts.   (5)
5 (4) Leaves ovate or elliptic, rarely suborbicular; calyx lobes triangular.   1a var. ovalifolia
+ Leaves elliptic-lanceolate to lanceolate; calyx lobes lanceolate.   1c var. lanceolata

Lower Taxa


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