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簇生委陵菜

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[[多年生草本]]。根粗壮,圆柱形,下部分枝。花茎铺散或上升,长10-30厘米,被伏生疏柔毛或脱落几无毛。基生叶间断或不间断羽状复叶,有小叶7-11对,间隔1-1.5厘米,连叶柄长4-15厘米,叶柄被伏生疏柔毛或几无毛,小叶对生或互生,无柄或顶生小叶有短柄;小叶片椭圆形或卵形,长0.3-2厘米,宽0.3-1.5厘米,向基部逐渐缩小呈附片状,顶端圆钝,基部圆形或宽楔形,常偏斜,边缘有缺刻状急尖锯齿,每边5-7齿,上面伏生短柔毛或脱落几无毛,下面幼时密被伏生柔毛,老时几无毛或中脉伏生柔毛;茎生叶1-2,有小叶1-3对;基生叶托叶膜质,褐色,外面被疏柔毛;茎生叶托叶草质,卵状披针形,顶端渐尖或有齿2-4。花1-4顶生,疏散,伞房状花序,花梗长3-4厘米,被伏生疏柔毛;花直径1-1.3厘米;萼片卵状三角形,顶端渐尖,副萼片椭圆形或椭圆披针形,全缘或有2-3齿,与萼片近等长;花瓣黄色,倒卵形,顶端圆钝,长于萼片一倍;花柱侧生至近基生,小枝状,柱头扩大。瘦果光滑。花果期8-9月。<ref>[https://baike.supfree.net/get.asp?id=%B4%D8%C9%FA%CE%AF%C1%EA%B2%CB 簇生委陵菜],在线查询</ref>
 
==红萼藤黄形态特征==
乔木,高约4米。枝条暗紫色,髓心中空,外面具细的纵条纹,嫩枝纤细, 紫红色。
 
叶片膜质,椭圆形、倒披针形或椭圆状披针形,长4-7(-9)厘米,宽2-3.5厘米,顶端渐尖或急尖,基部楔形或宽楔形,两面无毛,下面灰绿色,中脉纤细,上面微下陷,下面隆起,侧脉不明显,约5-8对,排列不整齐,网脉少而稀疏,不明显;叶柄长5-8毫米。
 
花单性、异株。雄花大、直径约1厘米,2-5成簇,稀单生,通常着生于当年生枝条顶端,稀腋生;花萼和花梗紫红色,花梗长4 6毫米,纤细,萼片椭圆形,几等大;雄蕊多数(约40枚)联合成1束,花丝长约为花药之半,花药4室,纵裂,无退化雌蕊。<ref>《中国植物志》 第50(2)卷 (1990) >> 106页 PDF </ref>
 
雌花和果实未见。花期12月至翌年1月。
 
Garcinia rubrisepala Y. H. Li in Acta Phytotax. din. 19 (4): 498, fig. 2: 1-2. 1981.
 
Trees ca. 4 m tall. Branches dark purple, finely striate with hollow pith; twigs purple-red, subterete, slender, finely striate. Petiole 5-8 mm; leaf blade abaxially gray-green, elliptic, oblanceolate, or elliptic-lanceolate, 4-7(-9) × 2-3.5 cm, membranous, both surfaces glabrous, midvein slender, raised abaxially, slightly impressed adaxially; secondary veins inconspicuous, 5-8 pairs, irregularly arranged; tertiary veins few, lax, inconspicuous, base cuneate or broadly cuneate, margin involute, apex acuminate or acute. Plant dioecious. Male flowers large, ca. 1 cm in diam., usually 2-5 in cluster, rarely solitary, usually inserted at apex of current year’s branchlet, rarely axillary; pedicels purple-red, 4-6 mm, slender; sepals purple-red, elliptic, nearly equal; stamen fascicles connate, forming a central mass of ca. 40 stamens; filaments ca. 1/2 as long as anthers; anthers 4-celled, cells longitudinally dehiscent; pistillode absent. Female flowers and fruit unknown. Fl. Dec-Jan.
==生长环境==
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