黑腺唇柱苣苔 hei xian chun zhu ju tai

Perennials, stemless. Rhizome internodes inconspicuous. Leaves basal, opposite; petiole 2-14 X 2-4 mm; leaf blade narrowly elliptic to narrowly ovate, 2-7.5 X 0.8-2.8 cm, papery, densely appressed puberulent, adaxially with hairs 0.8-1.1 and 0.15-0.5 mm, eglandular, base cuneate, margin subentire to repand, apex acute; lateral veins ca. 3 on each side of midrib, inconspicuous. Cymes ca. 5-flowered; peduncle 12-13 cm, spreading puberulent; bracts 2, free, ovate to narrowly ovate, 6.5-7 X 2.5-3 mm, densely appressed puberulent, margin entire, apex acute. Pedicel 0.3-1.8 cm, densely puberulent and glandular puberulent. Calyx 5-sect from base; segments nearly equal, narrowly triangular-lanceolate, 4-5 X 1-1.1 mm, appressed puberulent, margin entire, apex acute. Corolla ca. 3 cm, outside sparsely puberulent, inside puberulent near base of adaxial lip and below filaments; tube funnelform-tubular, ca. 2 X 1 cm; adaxial lip ca. 4 mm; abaxial lip ca. 1 cm. Filaments ca. 9 mm, glandular puberulent above middle; anthers fused by entire adaxial surfaces, ca. 3 mm, glabrous; staminodes 2, ca. 3 mm. Pistil ca. 1.5 cm; ovary ca. 9 mm, densely appressed puberulent. Style glabrous; stigma narrowly oblong, ca. 2 mm, emarginate. Fruit and seeds unknown.

* Cliffs. Guangxi (Longzhou Xian).

After publication of the family treatment for the Flora of China, this was treated as Primulina atroglandulosa (W. T. Wang) Mich. Möller & A. Weber (Taxon 60: 781. 2011).