中甸刺玫Rosa praelucens Byhouwer

别名：封闭蔷薇;

科名：蔷薇科 Rosaceae

属名：蔷薇属 Rosa

《中国植物志》第37卷453页
  82.中甸刺玫 图版72: 3-4
  Rosa praeluceus Byhouwei in Journ. Arn. Arb. 10: 97. 1927.
  灌木，高2-3米；枝粗壮，弓形，紫褐色，散生粗壮弯曲皮刺。小叶7-13，连叶柄长5-13（-20）厘米；小叶片倒卵形或椭圆形，长1-3.5(-6)厘米，宽7-12（-23）毫米，先端圆钝或急尖，基部圆形或宽楔形，边缘上半部有单锯齿或不明显重锯齿，下半部全缘，上面暗绿色，上下两面密被短柔毛，下面在叶脉及边缘密被长柔毛；小叶柄和叶轴密被绒毛和散生小皮刺；托叶大部贴生于叶柄，离生部分三角形或披针形，两面被柔毛，边缘有腺毛。花单生，基部有叶状苞片；花梗短粗。长3-6厘米，密被绒毛和散生腺毛；花直径（5）8-9厘米；萼筒扁球形，外被柔毛和稀疏皮刺，萼片卵状披针形，顶端叶状，全缘，内外两面均密被绒毛状长柔毛或外面基部近无毛，比花瓣稍短；花瓣红色，宽倒卵形，长3-4.5厘米，先端圆或微缺；雄蕊多数，长于花柱；花柱离生，密被长柔毛。果实扁球形，绿褐色，外面散生针刺，萼直立；宿存。花期6-7月。
  产云南（中甸）。多生于向阳山坡丛林中，海拔2700-3000米。
  从小叶形状与毛被、萼筒形状与花朵颜色、大小等特征看，本种颇与玫瑰R. rugosa Thunb.有若干相似之处，有人认为本种可作为小叶组与桂味组的中间连索。
形态特征：灌木，高2—3米；枝粗壮，弓形，紫褐色，散生粗壮弯曲皮刺。小叶7一13，连叶柄长5—13，(一20)厘米；小叶片倒卵形或椭圆形，长1—3．5(一6)厘米，宽7—12(一23)毫米，先瑞圆钝或急尖，基部圆形或宽楔形，边缘上半部有单锯齿或不明显重锯齿，下半部全缘，上面暗绿色，上下两面密被短柔毛，下面在叶脉及边缘密被长柔毛；小叶柄和叶轴密被绒毛和散生小皮刺；托叶大部贴生于叶柄，离生部分三角形或披针形，两面被柔毛，边缘有腺毛。花单生；基部有叶状苞片；花梗短粗乙长3—6厘米，密被绒毛和散生腺毛；花直径(5)8—9厘米；萼筒扁球形，外被柔毛和稀疏皮刺，萼片卵状披针形，顶端叶状，全缘，内外两面均密被绒毛状长柔毛或外面基部近无毛，比花瓣稍短；花瓣红色，宽倒卵形，长3—4．5厘米，先端圆或微缺；雄蕊多数，长于花柱；花柱离生，密被长柔毛b果实扁球形，绿褐色，外面散生针刺，萼直立；宿存。花期6一7月
产地分布：产云南（中甸）多生于向阳山坡丛林中，海拔2700--3000米。
本种提示：从小叶形状与毛被、萼筒形状与花朵颜色,大小等特征看,本种颇与玫瑰 R．rugosaThunb．有若干相似之处，有人认为本种可作为小叶组与桂味组的中间连索。
参考文献：Rosa praelucens Byhouwer in Journ．Arn．Arb．10：97．1927．

《Flora of China》 Vol. 9 (2003)
Rosa praelucens  Byhouwer
中甸刺玫   zhong dian ci mei
Shrubs 2–3 m tall. Branchlets purple-brown, terete, robust; prickles few, scattered, straight or curved at tip, to 1.5 cm, robust, flat, gradually tapering to base to 2 cm across. Leaves including petiole 5–13(–20) cm; stipules mostly adnate to petiole, free parts triangular or lanceolate, both surfaces pubescent, margin glandular-pubescent, apex acuminate; rachis and petioles tomentose, sparsely shortly prickly; leaflets 7–13, obovate or elliptic, 1–3.5(–6) × 0.7–1.2(–2.3) cm, both surfaces densely puberulous, abaxially villous along veins, base rounded or broadly cuneate, margin simply serrate in upper 1/2, or inconspicuously doubly serrate, apex rounded-obtuse or acute. Flower solitary, (5–)8–9 cm in diam.; pedicel 3–6 cm, tomentose, sometimes sparsely glandular-pubescent; bracts at base, leaflike. Hypanthium depressed-globose, pubescent, glandular bristly. Sepals 5, slightly shorter than petals, ovate-lanceolate, leaflike, both surfaces tomentose-villous, sometimes abaxially glandular bristly at base, margin entire. Petals 5, red, broadly obovate, base broadly cuneate, apex rounded or emarginate. Carpels on projected torus at base of hypanthium; styles free, not exserted, shorter than stamens, densely villous. Hip green-brown, depressed-globose, 1–1.5 cm in diam., sparsely glandular prickly, with persistent, erect sepals. Fl. Jun–Jul.
Woods on open slopes; 2700--3000 m. NW Yunnan (Zhongdian Xian).