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泸水菝葜 Smilax lushuiensis(图)

学名:Smilax lushuiensis

科属:菝葜科(Smilacaceae)菝葜属(Smilax)


攀缘木质藤蔓,无刺。茎分枝,近圆柱状,稍具条纹。叶柄7~10毫米,向基部加宽。叶片背面有白霜,卵状心形或圆形,薄纸质,主脉5,先端具细尖。雄花序为伞形花序;花序梗纤细,长3~4.5厘米;伞形花序具6~15花;花梗长1~2厘米。雄花花被片平展,长圆形或卵形长圆形,长6~7毫米,宽1.5-2毫米;花丝极短;花药0.3~0.5毫米。雌花序和果未知。花期5~6月。

2011年6月3日 梅里雪山拍摄


FOC英文版,翻译过来的~~

 

Vines climbing, unarmed. Stem branched, subterete, to more than 1 m, woody, slightly striate. Petiole 7--10 mm, widened toward base, narrowly winged for ca. 3/4 its length; abscission zone apical; tendrils just above winged portion. Leaf blade abaxially glaucous, ovate-cordate or orbicular-cordate, thinly papery, main veins 5, apex apiculate. Male inflorescence of 1 umbel, basally not prophyllate; peduncle slender, 3--4.5 cm; umbel 6--15-flowered, base thickened, ca. 2 mm in diam.; pedicels 1--2 cm. Male flowers: tepals spreading, narrowly oblong or ovate-oblong, 6--7 × 1.5--2 mm; filaments very short; anthers 0.3--0.5 mm. Female flowers and fruit unknown. Fl. May.

* Broad-leaved forests; 2500--2700 m. W Yunnan.


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