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FOC | Family List | FOC Vol. 9 | Rosaceae | Photinia

29. Photinia impressivena Hayata, Icon. Pl. Formosan. 5: 67. 1915.

陷脉石楠 xian mai shi nan

Shrubs or small trees, deciduous, 2–6 m tall. Branchlets purplish brown, terete, villous when young, glabrescent, with suborbicular lenticels; buds reddish brown, ovoid, apex acute. Petiole reddish, very short, 1–2(–8) mm, glabrous; leaf blade oblong-obovate or oblong-oblanceolate, 5–10 × 1.5–3 cm, thinly leathery, veins 6–9 pairs, raised abaxially and deeply impressed adaxially, anastomosing at leaf margin, both surfaces glabrous, adaxially shiny, base cuneate or attenuate into petioles, margin sparsely minutely serrate, apex acuminate. Compound corymbs terminal, 3–4(–10) mm in diam., few to many flowered; rachis and pedicels glabrous or tomentose, lenticellate. Pedicel (2–)4–10 mm. Flowers 6–7 mm in diam. Hypanthium campanulate, 4–5 mm in diam., abaxially glabrous. Sepals triangular-ovate, slightly shorter than hypanthium, apex acute. Petals white, ovate, 3–4 mm, glabrous, apex obtuse. Stamens 20, longer than petals, glabrous. Styles 2, connate nearly to middle. Fruit red, ovoid-ellipsoid, 8–10 × 6–8 mm, glabrous, few lenticellate; sepals urceolate; fruiting pedicels 1–1.8 cm, with dense lenticels. Fl. Apr–May, fr. Sep–Oct.

Forests, thickets, mountain valleys, stream sides; 400--3000 m. Fujian, Guangdong, Guangxi, Hainan [Vietnam].

1 Petiole 1–2 mm; compound corymb 3–4 cm in diam., few flowered; rachis, pedicels, and hypanthium abaxially glabrous; pedicel 4–10 mm.   29a var. impressivena
+ Petiole 5–8 mm; compound corymb 5–10 cm in diam., many flowered; rachis, pedicels, and hypanthium abaxially white tomentose; pedicel 2–3 mm.   29b var. urceolocarpa

Lower Taxa


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