斯氏唇柱苣苔 si shi chun zhu ju tai

Perennials, stemless. Rhizome internodes inconspicuous. Leaves basal; petiole 2.5-3 cm; leaf blade strongly oblique, ovate to ovate-elliptic, 3-9 X 2-3.3 cm, herbaceous, appressed pilose and puberulent, eglandular, base broadly rounded to narrowly cuneate, margin repand-denticulate, apex minutely acute; lateral veins 3 or 4 on each side of midrib, conspicuous. Cymes 1- or 2-flowered; peduncle ca. 4.5 cm, pubescent; bracts 2, free, oblong-lanceolate, 8-9 X ca. 2 mm, appressed puberulent, margin few-denticulate, apex minutely acute. Pedicel 7-10 mm, pilose. Calyx 5-sect from base; segments slightly unequal, elliptic-lanceolate, 7-7.5 X 1.8-2.1 mm, outside brown pilose, inside glabrous, margin 4-6-denticulate, apex acute to obtuse. Corolla flesh colored, ca. 2.3 cm, outside glandular puberulent, inside pilose basally; tube subtubular, ca. 12 X 6 mm; adaxial lip ca. 3 mm; abaxial lip ca. 1.1 cm. Filaments ca. 8 mm, glabrous; anthers fused by entire adaxial surfaces, ca. 3.5 mm, glabrous; staminodes 2, ca. 1.5 mm. Pistil ca. 1.1 cm; ovary ca. 6 mm, puberulent and glandular puberulent. Style base puberulent and glandular puberulent; stigma linear, ca. 1.8 X 1 mm, 2-lobed. Immature capsule erect, ca. 1.1 cm. Fl. Apr.

* Rocks in valleys; ca. 900 m. Gansu (Wen Xian).

After publication of the family treatment for the Flora of China, this was treated as Primulina skogiana (Z. Yu Li) Mich. Möller & A. Weber (Taxon 60: 784. 2011).