直蕊唇柱苣苔 zhi rui chun zhu ju tai

Perennials, stemless. Rhizome internodes inconspicuous. Leaves basal, opposite; petiole 1-3.5 cm X 3-6 mm; leaf blade narrowly ovate to narrowly elliptic, 7-11 X 3-4.2 cm, herbaceous, densely puberulent, eglandular, base oblique, cuneate, margin densely crenulate to dentate or serrulate, apex acute to rounded; lateral veins 5 or 6 on each side of midrib, slightly conspicuous. Cymes 2-8-flowered; peduncle 7-8 cm, spreading puberulent; bracts 2, free, ovate, ca. 5 X 3 mm, puberulent, margin remotely crenulate, apex obtuse. Pedicel 4-13 mm, puberulent and glandular puberulent. Calyx 5-sect from base; segments equal, narrowly triangular, 3-3.5 X ca. 1.2 mm, outside puberulent, inside glabrous, margin entire, apex acute. Corolla purple-blue, 2.2-2.7 cm, glabrous; tube nearly tubular, ca. 1.7 X 0.7 cm; adaxial lip ca. 3.5 mm; abaxial lip ca. 5 mm. Filaments ca. 9 mm, sparsely puberulent and glandular above; anthers fused by entire adaxial surfaces, ca. 2.5 mm, glabrous; staminodes 2, ca. 1.5 mm. Pistil ca. 2.1 cm, puberulent; ovary ca. 1 cm. Stigma oblong, ca. 2 mm, 2-lobed. Capsule erect, 2.5-3 cm. Fl. May.

* Rocks in hilly regions. N Guangdong (Liannan Xian).

After publication of the family treatment for the Flora of China, this was treated as Primulina orthandra (W. T. Wang) Mich. Möller & A. Weber (Taxon 60: 784. 2011).