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秦岭蔷薇Rosa tsinglingensis

时间:2013-11-07 13:44来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ): 秦岭蔷薇 学名( Scientific Name ): Rosa tsinglingensis Pax. et Hoffm. 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): 科属( Family Genus ): 蔷薇科(Rosaceae)蔷薇属 形态
中文名(Chinese Name):秦岭蔷薇
学名(Scientific Name):Rosa tsinglingensis Pax. et Hoffm.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):
科属(Family & Genus):蔷薇科(Rosaceae)蔷薇属
形态特征(Description):小灌木,高2-3米;小枝纤细,无毛;散生浅色皮刺,有时偶有针刺及腺毛。小叶通常11-13,稀9,连叶柄长5-11厘米;小叶片椭圆形或长圆形,长1-2厘米,宽8-12毫米,先端圆钝或急尖,基部近圆形或宽楔形,边缘有重锯齿或单锯齿,幼时齿尖带腺,上面无毛,叶脉下陷,下面无毛或近于无毛,常沿中脉有腺毛。叶轴叶柄有散生皮刺和腺毛;托叶大部贴生于叶柄,仅顶端部分离生,离生部分耳状,无毛,边缘具有腺齿。花单生于叶腋,无苞片;花梗长1.5-2厘米,无毛,有散生的腺毛;花直径2.5-3厘米;萼筒萼片外面无毛,萼片三角状披针形,先端叶状,全缘或有锯齿,内面密被柔毛;花瓣白色,倒卵形,基部楔形;雄蕊多数;花柱离生,稍伸出,密被柔毛。果倒卵圆形至长圆倒卵圆形,长2-3厘米,红褐色,有宿存直立萼片。花期7-8月,果期9月。
分布(Distribution):产陕西、甘肃,多生于海拔2800-3700米桦木林下或灌丛中。
用途(Use):
引自中国植物志英文版:FOC Vol. 9 Page 353     
Rosa tsinglingensis Pax & Hoffmmann, Repert. Spec. Nov. Regni Veg. Beih. 12: 414. 1922.
秦岭蔷薇 qing long qiang wei| Rosaceae  | Rosa
Shrubs small, 2–3 m tall. Branchlets slender; prickles sparse, occasionally bristly and glandular-pubescent. Leaves including petiole 5–11 cm; stipules mostly adnate to petiole, apical free parts auriculate, glabrous, margin glandular serrate; rachis and petiole sparsely prickly and glandular-pubescent; leaflets 11–13, rarely 9, elliptic or oblong, 1–2 × 0.8–1.2 cm, abaxially glabrous or subglabrous, along midvein glandular-pubescent, adaxially glabrous, with concave veins, base subrounded or broadly cuneate, margin doubly or simply serrate, teeth glandular apically when young, apex rounded-obtuse or acute. Flower solitary, axillary, 2.5–3 cm in diam.; pedicel 1.5–2 cm, sparsely glandular-pubescent; bracts present or not. Hypanthium glabrous. Sepals 5, triangular-lanceolate, leaflike, abaxially glabrous, adaxially densely pubescent, margin entire or serrate. Petals 5, white, obovate, base cuneate, apex emarginate. Styles free, slightly exserted, much shorter than stamens, densely pubescent. Hip red-brown, obovoid or oblong-obovoid, 2–3 cm, with persistent, erect sepals; pedicel 1.5–2 cm, sparsely glandular-pubescent. Fl. Jul–Aug, fr. Sep.
Betula forests, scrub; 2800--3700 m. Gansu, Shaanxi.
One of us (Robertson) has seen no specimens of this species.
 


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