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

293. Primula eburnea I. B. Balfour & Cooper in I. B. Balfour, Notes Roy. Bot. Gard. Edinburgh. 9: 166. 1916.

乳白垂花报春 ru bai chui hua bao chun

Primula harroviana I. B. Balfour & Cooper.

Herbs perennial. Leaves forming a rosette; petiole narrowly winged, nearly as long as leaf blade; leaf blade elliptic to oblong or ovate, 3--9 X 1.5--3.5 cm, copiously minutely glandular, base attenuate, margin dentate to dentate-lobulate, apex rounded. Scapes 10--20 cm, densely minutely glandular; capitula 6--12-flowered; bracts lanceolate, 2--6 mm, forming crown at apex. Flowers nodding, heterostylous. Calyx cup-shaped, 4.5--6(--8) mm, glandular outside, occasionally farinose inside, parted to middle; lobes unequal, oblong to suborbicular, margin entire to dentate at apex. Corolla cream-white, infundibuliform, 1.3--1.6 cm, puberulous outside; basal cylindric portion of tube slightly longer than calyx, gradually expanded upward; limb ca. 1 cm wide; lobes broadly rotund, 3.5--5 mm, irregularly notched at apex. Pin flowers: stamens ca. 2.5 mm above base of corolla tube; style ca. 5 mm. Thrum flowers: stamens ca. 5.5 mm above base of corolla tube; style ca. 1 mm. Capsule subglobose, nearly as long as calyx. Fl. Jul-Aug.

On peat, glacial debris, cliffs; 4300--4800 m. SE Xizang [Bhutan].


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