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Aristolochia huanjiangensis (Aristolochiaceae), a new species from limestone areas in Guangxi, southern China, is described and illustrated. It is compared with the two most similar species A. scytophylla and A. fangchi. [ABSTRACT FROM AUTHOR]

Briggsia damingshanensis L. Wu & B. Pan is described and illustrated as a new species of Gesneriaceae from Guangxi, China. It is similar to B. dongxingensis, but differs in its densely glandular-pubescent ovary, inconspicuous or absent bracts, pendulous and very slender peduncle, and sparsely pubescent stem and petiole. [ABSTRACT FROM AUTHOR]

Primulina gongchengensis Y.S. Huang & Yan Liu (Gesneriaceae) is described and illustrated as a new species from Guangxi, China. It is similar to P. macrodonta, but its leaves are densely glandular-pubescent on both surfaces, with a cuneate or broadly cuneate base and a repand or crenate margin; densely glandular-pubescent petiole and peduncle; purple corolla, with the tube ca. 1.5 cm long, 6-8 mm in diam. at the mouth; ca. 2 mm long, glabrous anthers; 3 staminodes, the lateral ones 1 mm long and the middle one 0.5 mm long; 1.5-1.8 cm long pistil; ca. 4 mm long ovary; and ca. 1 mm long stigma. [ABSTRACT FROM AUTHOR]

Spiradiclis cavicola L. Wu, Hareesh & B. Pan (Rubiaceae), a new species from limestone caves in Guizhou and Guangxi provinces, southwestern China, is described and illustrated. It is morphologically similar to S. scabrida, but can be easily distinguished by its 0.5-3 cm long petiole, elliptic to oblong leaf blade, and homostylous flowers with anthers and stigma positioned at the throat of corolla tube, or sometimes stigma slightly above anthers. [ABSTRACT FROM AUTHOR]