Primula calyptrata X. Gong & R. C. Fang, Novon. 13: 193. 2003.
Herbs perennial, completely efarinose, stems and both surfaces of leaf blade as well as petioles with dense articulated hairs. Rhizome elongated, ca. 2 cm, with numerous fibrous roots, producing 1 or 2 leaf-bearing stems above. Stem 2--2.5 cm before or in anthesis, purple. Leaves alternate, leaf blade suborbicular, 2.8--4 X 2.6--3.8 cm, apex rounded, base cordate, margin irregularly undulate, thickly papery when dry, grayish green above, purple below, midvein and 4 pairs of lateral veins obscure above and plane but distinct below; petiole 2.5--5.5 cm. Scape 1 or 2, 12--18 cm high, sparsely white villous, with 1 or 2 superimposed umbels with 2--5 slightly secund flowers in each; pedicels 2--4 mm, with dense articulated hairs; bracts ovate-lanceolate, 4--6 mm, prominently 1-veined, with dense articulated hairs; calyx campanulate, 5--6 mm, with dense articulated hairs, divided to 1/2--1/3 into ovate-triangular lobes, lobe with 3 distinct veins; corolla purple with a yellow eye, salverform, pubescent outside, tube ca. 1.7 cm with a hairy annulus inside, limb 1.5--1.8 cm in diam., lobes oblong-obovate, deeply emarginate; homostylous, stamens inserted in throat, anthers below annulus; style ca. 1.7 cm, subequal to corolla tube. Capsule enclosed in calyx tube, dehiscing by means of a calyptra.
* Evergreen broad-leaf forest, on limestone with moss; 1700-1870 m. SE Yunnan.
Name appeared after publication of the family treatment for the Flora of China.