齿褶龙胆 chi zhe long dan

Gentiana dentiformis T. N. Ho.

Annuals 5-10 cm tall. Stems purple, ascending to erect, 2 or 3 × dichotomously branched from base or rarely simple, glabrous. Basal leaves withered at anthesis; petiole 1-2 mm; leaf blade ovate-triangular, 6-10 × 2.5-3.5 mm, abaxially glabrous, adaxially densely and minutely papillate, apex acute, veins 1-3, distinct, and slender. Stem leaves spreading; petiole tube 0.5-0.7 mm, papillate on margin and abaxially; leaf blade ovate-lanceolate to ovate-triangular, 3-6 × 1.5-2.5 mm, much shorter than internodes, abaxially glabrous, adaxially densely and minutely papillate, base cordate, apex acute; veins 1-3, distinct, slender. Flowers (1 or) few to many. Pedicel 0.5-1.5 cm, glabrous. Calyx campanulate, 5-5.5 mm; lobes filiform to filiform-subulate, 2.5-3 mm, base 1-1.5 mm wide, apex acuminate, midvein prominent. Corolla white or pale yellow-green, outside with blue-gray stripes, campanulate, 0.9-1.2 cm; lobes ovate, 1.5-2 mm, margin entire, apex obtuse; plicae ovate, 1.2-1.8 mm, margin deeply few dentate, apex obtuse. Stamens inserted at basal part of corolla tube, equal; filaments 2.5-3.5 mm; anthers ellipsoid, 0.5-0.7 mm. Style 1.5-2 mm; stigma lobes linear. Capsules narrowly obovoid to obovoid, 5-6 mm; gynophore to 6 mm. Seeds light brown, ovoid, 1.5-1.7 mm. Fl. and fr. Aug-Oct.

* Pine forests; 3700-3900 m. NW Yunnan.