福建石楠Photinia fokienensis (Franch.) Franch.
别名:
科名:蔷薇科 Rosaceae
属名:石楠属 Photinia
《中国植物志》第36卷246页
26. 福建石楠
Photinia fokienensis (Franch.) Franch. mss. in herb. Mus. Paris ex Card. in Bull. Mus. Hist. Nat. Paris 26: 570. 1920. ——P. glabra Hemsl. var. fokienensis Franch. in Bull. Soc. Bot. France 46: 207. 1899. ——P. latouchei Franch. in herb. Mus. Paris.
落叶灌木或小乔木。高达5米;小枝细,无毛,棕黑色,有散生皮孔;冬芽卵形,无毛。叶片薄纸质,披针形或长圆披针形,长7-10.5厘米,宽1.5-3.5厘米,先端长渐尖,基部渐狭成楔形,边缘具密生尖锐细锯齿,两面无毛或下面中脉上微有柔毛,叶脉在上面凹陷,在下面隆起,侧脉7-9对;叶柄长5-10毫米,无毛。伞房花序顶生,疏生,少花;总花梗、花梗、萼筒及萼片均无毛,前二者有疣点;花梗细,长8-12毫米;花直径10-12毫米;萼筒杯状,长约2毫米;萼片三角卵形,长1-1.5毫米,先端急尖;花瓣白色,宽倒卵形,先端微凹,有爪;雄蕊约20;花柱3,近顶端连合,子房顶端有柔毛。花期5月。
产福建。生于山谷林中。模式标本采自古田。
本种与中华石楠 P. beauverdiana Schneid. 相近,但本种叶片披针形或长圆披针形,边缘有密生细锐锯齿,伞房花序具少数花,全部无毛,可以区别。本种初归为光叶石楠 P. glabra (Thunb.) Maxim. 的变种,且把著者误为 Hemsley, 但后者叶片厚革质,锯齿较钝,花序具多花,花瓣有毛,易于区别。
形态特征:落叶灌木或小乔木,高达5米;小枝细,无毛,棕黑色,有散生皮孔;冬芽卵形,无 毛。叶片薄纸质,披针形或长圆披针形,长7—10.5厘米,宽1.5—3.5厘米,先端长渐 尖,基部渐狭成楔形,边缘具密生尖锐细锯齿,两面无毛或下面中脉上微有柔毛,叶脉 在上面凹陷,在下面隆起,侧脉7—9对;叶柄长5—10毫米,无毛。伞房花序顶生,疏 生,少花;总花梗、花梗、萼筒及萼片均无毛,前二者有疣点;花梗细,长8—12毫米;花 直径10—12毫米;萼筒杯状,长约2毫米;萼片三角卵形,长1--1.5毫米,先端急尖; 花瓣白色,宽倒卵形,先端微凹,有爪;雄蕊约20;花柱。3,近顶端连合,子房顶端有柔 毛。花期5月。
产地分布:产福建。生于山谷林中。模式标本采自古田。
本种提示:本种与中华石楠P.Beauverdiana Schneid.相近,但本种叶片披针形或长圆披针形,边缘有密生细锐锯齿,伞房花序具少数花,全部无毛,可以区别。本种初归为光叶 石楠P.glabra(Thunb.)Maxim.的变种,且把著者误为Hemsley,但后者叶片厚革 质,锯齿较钝,花序具多花,花瓣有毛,易于区别。
参考文献:Photinia fokienensis(Franch.)Franch.Mss.In herb.Mus.Paris ex Card.In Bull. Mus.Hist.Nat.Paris 26:570.1920.——P.glabra Hemsl.Var.Fokienensis Franch.In Bull.Soc.Bot.France 46:207.1899.-----P.Latouchei Francb.In herb.Mus.Paris.
《Flora of China》 Vol. 9 (2003)
Photinia fokienensis (Finet & Franchet) Franchet ex Cardot
福建石楠 fu jian shi nan
Photinia glabra Hemsley var. fokienensis Finet & Franchet, Bull. Soc. Bot. France 46: 207. 1899.
Shrubs or small trees, deciduous, 3–5 m tall. Branchlets brownish to brownish black, slender, with scattered lenticels; buds ovoid, 3–5 mm, glabrous. Petiole 5–10 mm, glabrous; leaf blade lanceolate or oblong-lanceolate, 7–11 × 1.5–4 cm, thinly papery, veins 7–9 pairs, midvein raised abaxially and impressed adaxially, both surfaces glabrous or puberulous along midvein abaxially, base cuneate, margin densely minutely sharply serrate, apex long acuminate. Compound corymbs terminal, 3–7 × 3–5 cm, loose, few flowered; rachis and pedicels glabrous, lenticellate. Pedicel 0.8–1.2 cm, slender. Flowers 1–1.2 cm in diam. Hypanthium cupular, 2–3 mm, abaxially glabrous. Sepals triangular-ovate, 1–2 mm and nearly as broad, apex acute. Petals white, broadly obovate or suborbicular, 4–6 mm in diam., base clawed, apex emarginate. Stamens ca. 20, shorter than petals. Ovary pilose apically; styles 3, connate nearly to apex, equalling or lower than stamens. Fruit reddish brown, obovoid or subglobose, 6–8 mm in diam., glabrous. Fl. Apr–May, fr. July–Sep.
Mountain valley forests; 500--700 m. Fujian, Zhejiang.