Comastoma henryi (Hemsl.) Holub

Annuals 4-6 cm tall. Stems prostrate to ascending, slender, terete, striate, branched from base. Basal leaves withered at anthesis. Stem leaf petiole slender, to 5 mm; leaf blade spatulate to obovate, ca. 11 × to 4 mm including petiole, base rounded and abruptly contracted into a petiole, apex rounded, veins 1-3. Flowers terminal, solitary. Pedicel erect, to 3 cm, terete, striate. Calyx spreading, 3-3.5 mm; lobes slightly unequal, oblong-spatulate to narrowly elliptic, base narrowed, apex acute, veins 1-3 and indistinct. Corolla blue, narrowly tubular, 5.5-6.5 mm, to 10 mm in fruit; lobes erect, lanceolate, 2-3 mm, scale 1, apex acute to obtuse. Nectaries 10. Stamens inserted at middle of corolla tube; filaments 1.5-2 mm; anthers yellow, ellipsoid, ca. 1.5 mm. Style indistinct; stigma lobes suborbicular. Capsules narrowly ellipsoid, 6.5-7.5 mm. Seeds light brown, subglobose, 0.4-0.5 mm in diam.; seed coat smooth. Fl. and fr. Aug-Sep.

* Grassland slopes. W Hubei, E Sichuan.

Gentiana henryi Hemsley in F. B. Forbes & Hemsley, J. Linn. Soc., Bot. 26: 128. 1890.