摘 要 ：描述了广西苦苣苔科细筒苣苔属Lagarosolen W. T. Wang一新种-靖西细筒苣苔L. jingxiensis Yan Liu, H. S. Gao & W. B. Xu。该种与细筒苣苔L. hispidus W. T. Wang相近, 但叶片边缘具圆齿, 苞片线形或狭披针形, 长4~8 mm, 宽0.5~1 mm, 花丝较长, 约6~7 mm, 花冠裂片卵形, 内面具2条淡黄色条纹可与后者区别。靖西细筒苣苔的分布范围较狭窄, 目前仅见于广西靖西县地州乡和龙邦镇的几个岩溶洞穴的洞口带。
Abstract:A new species of Gesneriaceae, Lagarosolen jingxiensis Yan Liu, H. S. Gao & W. B. Xu, from Guangxi, China, is described and illustrated. The new species is similar to L. hispidus W. T. Wang, but differs in its leaf margin crenate, bracts linear or narrowly lanceolate, filaments 6~7 mm long, corolla lobes ovate, with 2 pale yellow stripes inside. It was only found in several karst caves in Jingxi County, Guangxi.