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三苞唇柱苣苔Chirita tribracteata

时间:2013-09-11 12:41来源:未知 作者:徐晔春 点击:
中文名( Chinese Name ):三苞唇柱苣苔 学名( Scientific Name ): Chirita tribracteata W. T. Wang 英文名( English Common Name ): 别名( Chinese Common Name ): 异名( Synonym ): 科属( Family Genus ): 苦苣苔科Gesneriaceae唇柱苣苔
中文名(Chinese Name):三苞唇柱苣苔
学名(Scientific Name):Chirita tribracteata W. T. Wang
英文名(English Common Name):
别名(Chinese Common Name):
异名(Synonym):
科属(Family & Genus):苦苣苔科Gesneriaceae唇柱苣苔属Chirita
形态特征(Description):多年生草本,具短根状茎。叶约7,均基生; 叶片纸质,椭圆形或倒卵形,两侧不相等,长(1.8-)8-10厘米,宽(1.4-)5-7.4厘米,顶端钝或圆形,基部斜宽楔形,或一侧楔形,另一侧截形,边缘具浅钝齿或浅波状,上面近边缘处疏被短毛,下面被疏毛,沿脉毛较密,侧脉每侧4-5条;叶柄长2-4.5厘米,扁,宽3-5毫米。花序约3条,2-3回分枝,约有7花;花序梗长8.5-9.8厘米,被开展的长柔毛及短腺毛;苞片3,轮生,椭圆形或长椭、圆形,长0.9-1.3厘米,宽3-7.5毫米,全缘,有长睫毛,两面无毛;花梗长0.8-1.6厘米,被短腺毛。花萼长7-10毫米,5裂至基部;裂片线状披针形,宽1-1.5毫米,外面被短柔毛,内面无毛。花冠蓝色,长3.6-4厘米,外面疏被短柔毛,内面上唇被短柔毛;筒细漏斗状,长约2.5厘米,口部粗9-11毫米;上唇长约7毫米,下唇长约14毫米。雄蕊的花丝及侧退化雄蕊均着生于距花冠基部12毫米处,长13毫米,在中部之下膝状弯曲,上部被短腺毛;退化雄蕊3,无毛,侧面2枚狭线形,长约3.2毫米,顶端头状,中央1枚着生于距花冠基部9毫米处,长约0.5毫米。花盘斜,高约0.9毫米。雌蕊长约2.5厘米,子房及花柱密被短柔毛,柱头长约2毫米,2裂近中部。花期6月。
分布(Distribution):产广西凤山。生于石灰岩山岩洞中稍阴处。
用途(Use):
引自中国植物志英文版FOC Vol. 18 Page 326      
Chirita tribracteata W. T. Wang, Bull. Bot. Res., Harbin. 1(4): 58. 1981.
三苞唇柱苣苔 san bao chun zhu ju tai| Gesneriaceae  | Chirita
Perennials, stemless. Rhizome internodes inconspicuous. Leaves basal, opposite; petiole 2-4.5 cm X 3-5 mm; leaf blade elliptic to broadly obovate, (1.8-)8-10 X (1.4-)5-7.4 cm, papery, adaxially puberulent near margin, eglandular, abaxially sparsely puberulent, base oblique, broadly cuneate, margin crenate to repand, apex obtuse to rounded; lateral veins 4 or 5 on each side of midrib, inconspicuous. Cymes ca. 7-flowered; peduncle 8.5-9.8 cm, villous and glandular puberulent; bracts 3, free, lanceolate to narrowly elliptic, 0.9-1.3 cm X 3-7.5 mm, ciliate, margin entire, apex acute. Pedicel 0.8-1.6 cm, glandular puberulent. Calyx 5-sect from base; segments equal, linear-lanceolate, 7-10 X 1-1.5 mm, outside puberulent, inside glabrous, margin entire, apex attenuate. Corolla blue, 3.6-4 cm, outside sparsely puberulent, inside puberulent on adaxial lip; tube narrowly funnelform, ca. 2.5 X 0.9-1.1 cm; adaxial lip ca. 7 mm; abaxial lip ca. 1.4 cm. Filaments ca. 1.3 cm, glandular puberulent near apex; anthers fused by entire adaxial surfaces, ca. 3.2 mm, glabrous; staminodes 3, central ca. 0.5 mm, laterals ca. 3.2 mm. Pistil ca. 2.5 cm, densely puberulent; ovary ca. 1.5 cm. Stigma cuneate, ca. 2 mm, 2-lobed. Fruit and seeds unknown. Fl. Jun.
* Near caves in limestone hills. NW Guangxi (Fengshan Xian).
After publication of the family treatment for the Flora of China, this was treated as Primulina tribracteata (W. T. Wang) Mich. Möller & A. Weber (Taxon 60: 785. 2011).





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