求江蔷薇Rosa taronensis Yü et Ku
求江蔷薇Rosa taronensis Yü et Ku
14.求江蔷薇 图版59: 5-6
Rosa taronensis Yu et Ku, Bull. Bot. Res. 1 (4): 6. 1981.
灌木,高1-2.5米;小枝圆柱形,常无毛,有基部膨大的皮刺和细密的针刺。小叶7-9(-13),连叶柄长4-10厘米;小叶片长圆形或长圆倒卵形,长1-3厘米,宽5-12毫米,先端截形,基部宽楔形或近圆形,边缘仅顶端的1/3或最多不超过1/2部分有锐锯齿,下半部全缘,上下两面均无毛或下面有时沿中脉稍有柔毛和小皮刺;小叶柄和叶轴无毛,有散生小皮刺;托叶宽,大部贴生于叶柄,离生部分卵形,先端尾尖,两面无毛,边缘有腺齿。花单生;无苞片;花梗短,长不超过1.2厘米,无毛;花直径3.5-4厘米;萼筒倒圆锥形,无毛;萼片4,宽卵形,先端短尾状,全缘,外面有毛或近无毛,内面密被黄白色长柔毛,边缘较密;花瓣4,淡黄色,宽倒卵形,先端微凹,基部宽楔形;花柱离生,比雄蕊短。果倒圆锥形,直径约1厘米,桔黄色,成熟时果梗膨大,萼片直立,常宿存。
产云南。多生于草地或杂木林中,海拔2400-3300米。模式标本采自云南贡山。
本种与广泛分布西南高山地区的峨眉蔷薇R. omeiensis Rolfe极为近似,惟后者小叶片对数较多(4-8对),叶边全部有锯齿,花瓣白色,果实亮红色,有较长肉质果梗,易于区别。
形态特征:灌木,高1--2.5米;小枝圆柱形,常无毛,有摹部膨大的皮刺和细密的针刺。小叶7— 9(--13),连叶柄长4—10厘米;小叶片长圆形或长圆倒卵形,长1—3厘米,宽5--12毫 米,先端截形,基部宽楔形或近圆形,边缘仅顶端的1/3.或最多不超过1/2部分有锐锯齿, 下半部全缘,上下两面均无毛或下面有时沿中脉稍有柔毛和小皮刺;小叶柄和叶轴无毛, 有散生小皮刺;托叶宽,大部贴生于叶柄,离生部分卵形,先端尾尖,两面无毛,边缘有腺 齿。花单生;无苞片;花梗短,长不超过1.2厘米,无毛;花直径3.5—4厘米;萼茼倒圆锥形,无毛;萼片4,宽卵形,先端短尾状,全缘,外面有毛或近无毛,内面密被黄白色长柔毛,边缘较密;花瓣4,淡黄色,宽倒卵形;先端微曲;基部宽楔形;花柱离生,比雄蕊短。果倒圆锥形,直径约1厘米,桔黄色,成熟时果梗膨大,萼片直立,常宿存。
产地分布:产云南。多生于草地或杂木林中,海拔2400—3300米。模式标本采自云南贡山。本种与广泛分布西南高山地区的峨嵋蔷薇R.Omeiensis Rolfe极为近似,惟后者小叶斥对数较多(4--8对),叶边全部有锯齿,花瓣白色,果实亮红色,有较长肉质果梗,易于区别。
参考文献:Rosa taronensis Yu et Ku Bull.Bot.Res 1(4):6.1981.
《Flora of China》 Vol. 9 (2003)
Rosa taronensis T. T. Yu
求江蔷薇 qiu jiang qiang wei
Shrubs 1–2.5 m tall. Branchlets terete, often glabrous; prickles paired at leaf bases, terete, straight, to 8 mm, abruptly flaring to a broad base; bristles dense, much shorter than prickles. Leaves including petiole 4–10 cm; stipules broad, mostly adnate to petiole, free parts ovate, glabrous, apex caudate; rachis and petiole glabrous, with numerous small prickles; leaflets 7–9(–13), oblong or oblong-obovate, 1–3 × 0.5–1.2 cm, glabrous or abaxially along midvein sparsely pubescent and with small prickles, base broadly cuneate or subrounded, margin acutely serrate at upper 1/3–1/2 part, entire at lower part, apex truncate. Flower solitary, 3.5–4 cm in diam.; pedicel to 1.2 cm, glabrous; bracts absent. Hypanthium obconic, glabrous. Sepals 4, broadly ovate, abaxially pubescent or subglabrous, adaxially densely yellow-white villous, margin entire, apex shortly caudate. Petals 4, yellowish, broadly obovate, base broadly cuneate, apex emarginate. Styles free, slightly exserted, shorter than stamens. Hip orange-yellow, obconic, ca. 1 cm in diam., usually with persistent, erect sepals; pedicel turgid at base, to 1.2 cm, glabrous.
Mixed forests, grassy places; 2400--3300 m. NW Yunnan.
别名:色威美多;独龙江蔷薇;俅江蔷薇;色瓦;
科名:蔷薇科 Rosaceae
属名:蔷薇属 Rosa
14.求江蔷薇 图版59: 5-6
Rosa taronensis Yu et Ku, Bull. Bot. Res. 1 (4): 6. 1981.
灌木,高1-2.5米;小枝圆柱形,常无毛,有基部膨大的皮刺和细密的针刺。小叶7-9(-13),连叶柄长4-10厘米;小叶片长圆形或长圆倒卵形,长1-3厘米,宽5-12毫米,先端截形,基部宽楔形或近圆形,边缘仅顶端的1/3或最多不超过1/2部分有锐锯齿,下半部全缘,上下两面均无毛或下面有时沿中脉稍有柔毛和小皮刺;小叶柄和叶轴无毛,有散生小皮刺;托叶宽,大部贴生于叶柄,离生部分卵形,先端尾尖,两面无毛,边缘有腺齿。花单生;无苞片;花梗短,长不超过1.2厘米,无毛;花直径3.5-4厘米;萼筒倒圆锥形,无毛;萼片4,宽卵形,先端短尾状,全缘,外面有毛或近无毛,内面密被黄白色长柔毛,边缘较密;花瓣4,淡黄色,宽倒卵形,先端微凹,基部宽楔形;花柱离生,比雄蕊短。果倒圆锥形,直径约1厘米,桔黄色,成熟时果梗膨大,萼片直立,常宿存。
产云南。多生于草地或杂木林中,海拔2400-3300米。模式标本采自云南贡山。
本种与广泛分布西南高山地区的峨眉蔷薇R. omeiensis Rolfe极为近似,惟后者小叶片对数较多(4-8对),叶边全部有锯齿,花瓣白色,果实亮红色,有较长肉质果梗,易于区别。
形态特征:灌木,高1--2.5米;小枝圆柱形,常无毛,有摹部膨大的皮刺和细密的针刺。小叶7— 9(--13),连叶柄长4—10厘米;小叶片长圆形或长圆倒卵形,长1—3厘米,宽5--12毫 米,先端截形,基部宽楔形或近圆形,边缘仅顶端的1/3.或最多不超过1/2部分有锐锯齿, 下半部全缘,上下两面均无毛或下面有时沿中脉稍有柔毛和小皮刺;小叶柄和叶轴无毛, 有散生小皮刺;托叶宽,大部贴生于叶柄,离生部分卵形,先端尾尖,两面无毛,边缘有腺 齿。花单生;无苞片;花梗短,长不超过1.2厘米,无毛;花直径3.5—4厘米;萼茼倒圆锥形,无毛;萼片4,宽卵形,先端短尾状,全缘,外面有毛或近无毛,内面密被黄白色长柔毛,边缘较密;花瓣4,淡黄色,宽倒卵形;先端微曲;基部宽楔形;花柱离生,比雄蕊短。果倒圆锥形,直径约1厘米,桔黄色,成熟时果梗膨大,萼片直立,常宿存。
产地分布:产云南。多生于草地或杂木林中,海拔2400—3300米。模式标本采自云南贡山。本种与广泛分布西南高山地区的峨嵋蔷薇R.Omeiensis Rolfe极为近似,惟后者小叶斥对数较多(4--8对),叶边全部有锯齿,花瓣白色,果实亮红色,有较长肉质果梗,易于区别。
参考文献:Rosa taronensis Yu et Ku Bull.Bot.Res 1(4):6.1981.
《Flora of China》 Vol. 9 (2003)
Rosa taronensis T. T. Yu
求江蔷薇 qiu jiang qiang wei
Shrubs 1–2.5 m tall. Branchlets terete, often glabrous; prickles paired at leaf bases, terete, straight, to 8 mm, abruptly flaring to a broad base; bristles dense, much shorter than prickles. Leaves including petiole 4–10 cm; stipules broad, mostly adnate to petiole, free parts ovate, glabrous, apex caudate; rachis and petiole glabrous, with numerous small prickles; leaflets 7–9(–13), oblong or oblong-obovate, 1–3 × 0.5–1.2 cm, glabrous or abaxially along midvein sparsely pubescent and with small prickles, base broadly cuneate or subrounded, margin acutely serrate at upper 1/3–1/2 part, entire at lower part, apex truncate. Flower solitary, 3.5–4 cm in diam.; pedicel to 1.2 cm, glabrous; bracts absent. Hypanthium obconic, glabrous. Sepals 4, broadly ovate, abaxially pubescent or subglabrous, adaxially densely yellow-white villous, margin entire, apex shortly caudate. Petals 4, yellowish, broadly obovate, base broadly cuneate, apex emarginate. Styles free, slightly exserted, shorter than stamens. Hip orange-yellow, obconic, ca. 1 cm in diam., usually with persistent, erect sepals; pedicel turgid at base, to 1.2 cm, glabrous.
Mixed forests, grassy places; 2400--3300 m. NW Yunnan.
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