紫萼山梅花Philadelphus purpurascens

中文名(Chinese Name):紫萼山梅花
学名(Scientific Name):Philadelphus purpurascens (Koehne) Rehd.
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):Philadelphus brachybotrys var. purpurascens Koehne 
科属(Family & Genus):虎耳草科(Saxifragaceae)山梅花属
形态特征(Description):
分布(Distribution):产四川西北部、云南,生于海拔2600-3500米山地灌丛中。
用途(Use):灌木,高1.5-4米;二年生小枝灰棕色或灰褐色,无毛,表皮片状脱落,当年生小枝暗紫红色,被极稀疏白色细柔毛或无毛。叶卵形或椭圆形,长3.5-7厘米,宽2.5-4.5厘米,先端渐尖或急尖,基部楔形或阔楔形,边全缘或上面具疏齿;叶脉离基出3-5条;叶柄长2-6毫米;花枝上叶椭圆状披针形或卵状披针形,较小,长1.5-4厘米,宽0.5-1.5厘米,先端急尖或钝,边近全缘,两面均无毛或下面叶脉上疏被毛,叶脉基出3条;叶柄长2-3毫米。总状花序有花5-7 (-9) 朵;花序轴长2-4.5厘米,暗紫红色,无毛或疏被毛;花梗长3-5毫米,无毛;花萼紫红色,有时具暗紫色小点及常具白粉,外面疏被微柔毛或脱落变无毛,萼筒壶形,与裂片间常有缢纹,裂片卵形,长约5毫米,宽约3.5毫米,先端急尖;花冠盘状,直径2-2.5厘米;花瓣白色,椭圆形、倒卵形或阔倒卵形,长1-1.5厘米,宽8-13毫米,先端有时凹入;雄蕊25-33,最长的长达7毫米;花盘有时稀疏被白色长柔毛;花柱长约6毫米,先端不裂或稍开裂,基部无毛或有时稀疏被毛,柱头棒形,长1-1.5毫米,常较花药小。蒴果卵形,长6-8毫米,直径4-6毫米;种子长约3毫米,具短尾。花期5-6月,果期7-9月。
引自中国植物志英文版:FOC Vol. 8 Page 398     
Philadelphus purpurascens (Koehne) Rehder, Mitt. Deutsch. Dendrol. Ges. 24: 220. 1916.
紫萼山梅花 zi e shan mei hua| Saxifragaceae  | Philadelphus
Shrubs 1.5-4 m tall. Branchlets of previous year gray or grayish brown, those of current year purple, white villous or glabrescent. Petiole 2-6 mm; leaf blade ovate or elliptic, 3.5-7 × 2.5-4.5 cm, both surfaces glabrous, or abaxially sparsely villous along veins or densely white villous, base cuneate or broadly so, margin entire or serrate distally, apex acute or acuminate; leaves on flowering shoots with petiole 2-3 mm, leaf blade ovate, elliptic-lanceolate, or ovate-lanceolate, 1.5-4 × 0.5-1.5 cm, veins 3, basifugal, base cuneate or broadly so, margin subentire, apex obtuse or acute. Racemes 5-7(-9)-flowered; rachis purple, 2-10 cm, glabrous or sparsely pilose; pedicels 3-5 mm, glabrous. Calyx purple or dark brown; tube glaucous, spotted, urn-shaped, sparsely pubescent to glabrescent; lobes ovate, ca. 5 × 3.5 mm, apex acute. Corolla discoid; petals white, elliptic-obovate or broadly obovate, 1-1.5 × 8-13 mm, apex emarginate. Stamens 25-33, longest ones ca. 7 mm. Disc sometimes sparsely white villous. Style slightly divided or entire, ca. 6 mm, glabrous or sometimes sparsely villous; stigmas clavate, 1-1.5 mm, shorter than anthers. Capsule ovoid, 6-8 × 4-6 mm. Seeds ca. 3 mm, shortly tailed. Fl. May-Jun, fr. Jul-Sep.
* Mixed forests, thickets, mountain slopes; 2200-3500 m. Sichuan, Yunnan.
 紫萼山梅花Philadelphus purpurascens

紫萼山梅花Philadelphus purpurascens
(责任编辑:徐晔春)

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