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上思卷花丹
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中文学名:上思卷花丹
界:植物界
门:被子植物门
纲:双子叶植物纲
目:[[桃金娘目]]
科:[[野牡丹科]]
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'''上思卷花丹'''(学名:'''Scorpiothyrsus shangszeensis''')为[[野牡丹科]][[卷花丹属]]下的一个种。
<ref>[http://www.iplant.cn/info/%C9%CF%CB%BC%BE%ED%BB%A8%B5%A4 上思卷花丹], 植物智, 2020-01-18</ref>
==上思卷花丹形态特征==
直立亚灌木,高0.5-1米;小枝松散,幼时四棱形,具槽,密被腺毛及柔毛,基部呈圆柱形,近无毛,木质化。
叶片纸质或近膜质,卵形或广卵形,顶端渐尖,基部心形,长7-14厘米,宽4.5-9毫米,边缘具细齿或近全缘,齿尖具刺毛及缘毛,9基出脉,最外侧2条细且紧靠边缘,两面被疏糙伏毛及疏微柔毛,叶面脉平整,背面脉隆起,明显,脉上毛较多,细脉与侧脉垂直,互相平行;叶柄长4-10.5厘米,密被腺毛及柔毛。
由蝎尾状聚伞花序组成圆锥花序,顶生,松散,长约8.5厘米,宽约6厘米或略宽,总梗、花梗、花萼均被腺毛及柔毛;花梗长约1.5毫米,花萼钟形,具四棱,长约4毫米,萼管长约2.5毫米,裂片狭披针形,长约1.5毫米;花瓣白色或粉红色,扁圆形或广卵形,顶端圆形或短急尖,长4.5-7毫米,宽约5毫米;雄蕊长4.5-5.5毫米,花药长2-2.5毫米,基部具2刺毛,毛长1-2毫米,药隔微膨大,无距;子房半下位,扁球形,无冠,无毛。
[[File:上思卷花丹2.jpg|缩略图|左|250px|[http://2019img.cvh.ac.cn/imgcvh/l/PE/01991539.jpg 原图链接] [http://2019.cvh.ac.cn/spm/PE/01991539 来自植物标本馆]]]
蒴果(未熟)扁球形,为宿存萼所包;宿存萼扁球形,具四棱,顶端平截,具8脉,被腺毛及柔毛,直径约2.5毫米,高约2毫米。
花期5-6月,果期6-7月。
[[File:上思卷花丹1.jpg|缩略图|左|250px|[http://img1.iplant.cn/imgf/l/1228595 原图链接] [http://www.iplant.cn/info/Scorpiothyrsus%20shangszeensis?t=z来自植物智]]]
Scorpiothyrsus shangszeensis C. Chen,植物研究, 4 (3): 63. 1984.
Shrublets, erect, 50-100 m tall. Branches spreading, woody, basally terete but apically 4-sided, with dense glandular trichomes and pilose but glabrescent. Petiole 4-10.5 cm, with dense glandular trichomes and pilose; leaf blade ovate to broadly ovate, 7-14 cm × 4.5-9 mm, papery or stiffly papery, both surfaces sparsely strigose and puberulous, secondary veins 4 on each side of midvein, base cordate, margin ciliate and denticulate to subentire with each tooth having a terminal seta, apex acuminate. Inflorescences terminal, scorpioid cymose panicles, ca. 8.5 × 6 cm, spreading. Pedicel ca. 1.5 mm, with glandular trichomes and pilose. Hypanthium campanulate, 4-sided, ca. 2.5 mm, with glandular trichomes and pilose. Calyx lobes narrowly lanceolate, ca. 1.5 mm. Petals white or pink, oblong to broadly ovate, 4.5-7 × ca. 5 mm, apex rounded to shortly acute. Stamens 4.5-5.5 mm; anther 2-2.5 mm, base 2-setose; connective minutely inflated. Ovary half inferior, ovoid, not crowned, glabrous. Capsule ovoid; hypanthium ca. 2 × 2.5 mm, 4-sided, 8-ribbed, with glandular trichomes and pilose, apex truncate. Fl. May-Jun, fr. Jun-Jul.
==上思卷花丹生长环境==
生长于海拔600-850米的山坡、山谷密林下或林下,溪旁或荫湿的地方。
==上思卷花丹分布范围==
产自[[广西]]西南部。模式标本采自广西[[上思]][[十万大山]]。
== 参考来源 ==
{{reflist}}
[[Category:370 植物學總論]]