Primula yunnanensis Franch.

Herbs perennial, forming small tufts with many rosettes. Petiole usually inconspicuous, rarely nearly as long as leaf blade; leaf blade elliptic to obovate-elliptic or spatulate, 5--35 X 2--7 mm, abaxially usually densely yellow farinose, adaxially efarinose or nearly so, base attenuate, margin crenulate to crenulate-dentate, apex obtuse to acute. Scapes 1.5--6(--8) cm, ± farinose toward apex, 1--5-flowered; bracts ovate-lanceolate to sublinear, 2--7 mm. Pedicel 1--10 mm, scarcely farinose. Flowers heterostylous. Calyx campanulate, (2--)4--5(--7) mm, efarinose or scarcely farinose outside, densely yellow farinose inside, parted to ± middle, 5-ribbed; lobes lanceolate to triangular, apex acute to subobtuse. Corolla rose-pink to lilac; tube 9--10 mm; limb 1--1.5 cm wide; lobes broadly obovate, deeply emarginate. Pin flowers: stamens ca. 2 mm above base of corolla tube; style reaching mouth. Thrum flowers with positions reciprocal. Capsule elliptic, usually shorter than calyx. Fl. Jun.

SW Sichuan, NW Yunnan

* On limestone rocks; 2800--3600 m.

Primula calcicola I. B. Balfour & Forrest; P. fragilis I. B. Balfour & Kingdon Ward; P. kichanensis Franchet ex Petitmengin; P. umbrella Forrest; P. yunnanensis subsp. fragilis (I. B. Balfour & Kingdon Ward) W. W. Smith & Forrest.