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桃叶石楠 Photinia prunifolia

时间:2013-11-06 13:57来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 桃叶石楠 学名( Scientific Name ): Photinia prunifolia (Hook. et Arn.) Lindl. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): Photinia melanostigma Hance Photinia serrulata
中文名(Chinese Name):桃叶石楠
学名(Scientific Name):Photinia prunifolia (Hook. et Arn.) Lindl.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Photinia melanostigma Hance  Photinia serrulata var. prunifolia Hook. et Arn.  Photinia consimilis Hand.-Mazz.
科属(Family & Genus):蔷薇科(Rosaceae)石楠属
形态特征(Description):常绿乔木,高10-20米;小枝无毛,灰黑色,具黄褐色皮孔。叶片革质,长圆形或长圆披针形,长7-13厘米,宽3-5厘米,先端渐尖,基部圆形至宽楔形,边缘有密生具腺的细锯齿,上面光亮,下面满布黑色腺点,两面均无毛,侧脉13-15对;叶柄长10-25毫米,无毛,具多数腺体,有时且有锯齿。花多数,密集成顶生复伞房花序,直径12-16厘米,总花梗和花梗微有长柔毛;花直径7-S毫米;萼筒杯状,外面有柔毛;萼片三角形,长1-2毫米,先端渐尖,内面微有绒毛;花瓣白色,倒卵形,长约4毫米,先端圆钝,基部有绒毛;雄蕊20,与花瓣等长或稍长;花柱2 (-3),离生,子房顶端有毛。果实椭圆形,长7-9毫米,直径3-4毫米,红色,内有2 (-3) 种子。花期3-4月,果期10-11月。
分布(Distribution):产广东、广西、福建、浙江、江西、湖南、贵州、云南,生于海拔900-1100米疏林中。日本琉球及越南也有。
用途(Use):
引自中国植物志英文版:FOC Vol. 9 Page 130
Photinia prunifolia (Hooker & Arnott) Lindley, Bot. Reg., n.s. 10: sub t. 1956. 1837.
桃叶石楠 tao ye shi nan| Rosaceae  | Photinia
Trees evergreen, 10–20 m tall. Branchlets dark purplish brown to grayish black, glabrous, with yellowish brown suborbicular lenticels; buds ovoid, 2.5–4 mm, apex shortly acuminate or acute; scales several, dark brown, puberulous when young, glabrous when old. Petiole 1–2.5(–3) cm, glabrous, with many glands, sometimes with teeth; leaf blade oblong or oblong-lanceolate, 7–13 × 3–5 cm, leathery, veins 13–15 pairs, both surfaces glabrous, rarely slightly pilose when young, soon glabrescent, abaxially with black glands, adaxially lustrous, base rounded to cuneate, margin densely minutely sharply serrate or doubly serrate, apex acuminate or acute. Compound corymbs terminal, 8–11 × 12–16 cm, compact, many flowered; rachis and pedicels slightly villous; bracts caducous, lanceolate or linear, 2–4 mm, somewhat villous, later glabrous. Pedicel 4–8 mm. Flowers 7–8 mm in diam. Hypanthium cupular, 2–2.5 mm, abaxially glabrous or initially villous, glabrescent. Sepals triangular, 1–2 mm, apex acuminate or acute. Petals white, obovate, 3–4.5 mm, base tomentose, apex obtuse. Stamens 20, slightly shorter than or nearly as long as petals. Ovary pubescent apically; styles 2(or 3), connate basally, somewhat not exceeding stamens. Fruit red, ellipsoid, 7–11 × 4–7 mm, glabrous, with 2(or 3) seeds. Fl. Mar–Apr, fr. Oct–Nov.
Hills, slopes, stream sides, forests, bamboo forests by roadsides; 200--1700 m. Fujian, Guangdong, Guangxi, Guizhou, Hunan, Jiangxi, Yunnan, Zhejiang [Indonesia, Japan, Malaysia, Vietnam].
 




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