西子报春苣苔Primulina xiziae

西子报春苣苔Primulina xiziae

Flowering:20170530,Yuhuangshan
FOC Vol. 18
FOC | Family List | FOC Vol. 18 | Gesneriaceae | Primulina
Primulina xiziae Fang Wen, Yue Wang & G. J. Hua, Nordic J. Bot. 30: 77. 2012.
* ca. 100 m. Zhejiang (Hangzhou).

Perennial acaulescent herb. Rhizome inconspicuously compressed, rounded to cylindrical, 1.0–1.5 cm long, 0.8–1.2 cm in diameter. Leaves 4–6, basal or clustered at the top of rhizome; leaf lamina chartaceous, ovate-elliptic or ovate, 10–15 × 7.0–11.5 cm, base oblique, broadly cuneate, margin entire or sinuolate, ciliate, apex obtuse or rotund, shortly appressed-pubescent on both sides, 3–4-nerved on each side; petiole compressed, 3.0–10.5 × 1.0 cm, pubescent and sparsely long-pubescent. Cymes axillary, 1–4, branched once or unbranched, 2–8-flowered; peduncle slender, 8.5–15.0 cm long, 1.5–2.0 mm in diameter, densely pubescent; bracts 2, opposite, small, ovate, 1.2 × 1.0 cm, strigose outside, glabrous inside, caducous or withered before full-blooming period; pedicel 12–15 mm long, densely shortly erect-glandular. Calyx 5-parted to the base, lobes equal, linear-lanceolate, ca 8 mm, densely erect short-glandular outside, glabrous inside. Corolla 3.4–3.6 cm long, orifice ca 7.5 mm in diameter, white with a lavender shading, lilac or fuchsia, the colour of the throat same as corolla without two yellow stripes, infundibuliform–tubular, the upper part of the interior of the corolla with two lines of hairs; tube slender, the upper part of the outer side densely erect-glandular, densely erect-pubescent from the middle to the base; limb distinctly 2-lipped, adaxial lip 2-parted to the middle, lobe ca 8 mm long, slightly oblique linguiform; abaxial lip 3-parted to the middle, lobes oblong, 1.1–1.3 cm long. Stamens 2, adnate to ca 1.1 cm above the corolla base; anthers reniform, ca 4.0–4.5 mm long, slightly constricted at the middle, glabrous; filaments ca 1.2 cm long, the lower half of filaments flaky, base pubescent, geniculate at the middle, the upper half inconspicuously short-glandular; staminodes 3, lateral ones with broad base, gradually narrowed to apex, curved in upper part, apex capitate, glabrous, the third staminode inconspicuous, small head-like; disc annular, 1.2–1.5 mm high. Pistil 2.5–2.8 cm long, densely erect-glandular; ovary linear; style 5–6 mm long. Stigma 2-lobed, 4–5 mm long. Capsule linear, ca 5 cm, slightly contorted.



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