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

54. Primula veris subsp. macrocalyx (Bunge) Ludi, Ill. Fl. Mitt.-Eur. 5: 1753. 1927.

硕萼报春 shuo e bao chun

Primula macrocalyx Bunge in Ledebour, Fl. Altaic. 1: 209. 1829; P. inflata Lehmann subsp. macrocalyx (Bunge) O. Schwarz; P. officinalis (Linnaeus) Hill var. macrocalyx (Bunge) C. Koch.

Herbs perennial. Leaves forming a rosette; petiole winged, usually 1/3--1/2 as long as leaf blade, rarely ca. as long as leaf blade; leaf blade ovate-oblong to oblong, 11--14 X 2--2.7 cm, to 20 cm at fruiting, abaxially densely short pubescent, adaxially sparsely strigillose, base attenuate, margin irregularly crenate to dentate, apex rounded to obtuse. Scape 12--35 cm, short pubescent; umbel solitary, 3--15-flowered; bracts linear-lanceolate, 4--10 mm. Pedicel 0.4--2 cm, elongating to 2.6 cm in fruit, densely pubescent. Flowers heterostylous. Calyx tubular-campanulate, 0.5--2 cm, copiously pubescent, parted to 1/3, 5-veined; lobes triangular, apex acute or subacuminate. Corolla yellow; tube ca. as long as calyx; limb 1.8--2.8 cm wide; lobes obovate, emarginate. Pin flowers: stamens at middle of corolla tube; style ca. as long as tube. Thrum flowers: stamens toward apex of corolla tube; style ca. 1/2 as long as tube. Capsule ellipsoid, ca. 1/2 as long as calyx. Fl. May-Jun, fr. Jul-Aug. 2n = 22.

Grassy areas on N-facing slopes; 1500--2000 m. NW Xinjiang [Kazakhstan, Kyrgyzstan, Russia, Tajikistan, Turkmenistan, Uzbekistan; SW Asia]

The distribution of the type subspecies (Primula veris subsp. veris) is from C and S Europe eastward to the Crimea. It can be distinguished by its smaller calyx (0.8--1.5 cm) and corolla (0.9--1.2 cm in diam.).


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