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FOC | Family List | FOC Vol. 15 | Primulaceae | Primula

206. Primula caldaria W. W. Smith & Forrest, Notes Roy. Bot. Gard. Edinburgh. 14: 35. 1923.

匍枝粉报春 pu zhi fen bao chun

Primula caldaria W. W. Smith & Forrest var. nana W. W. Smith & Forrest.

Herbs perennial, stoloniferous. Stolons 5--20 cm, terminating in a leaf rosette, with alternate leaves on lower part. Leaves forming a rosette; petiole narrowly winged, nearly as long as leaf blade; leaf blade oblanceolate, 2--15(--25) X 0.6--1.8(--3.5) cm, abaxially white farinose, adaxially glabrous, base long-attenuate, margin remotely blunt denticulate above middle, apex rounded to obtuse. Scapes (5--)8--35(--45) cm, farinose toward apex; umbels 10--30-flowered. Pedicel 5--12 mm, elongating to 2 cm in fruit, usually white farinose. Flowers heterostylous. Calyx campanulate, ca. 4.5 mm, ± farinose, parted to middle; lobes lanceolate, apex acute. Corolla white or violet; tube 6--7 mm; limb 5--7 mm wide; lobes obovate, emarginate. Pin flowers: stamens at middle of corolla tube; style reaching mouth. Thrum flowers with positions reciprocal. Capsule globose, nearly as long as calyx. Fl. May. 2n = 16@.

* Ditches, near hot springs; 2200--3000 m. E Xizang, NW Yunnan.


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