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FOC | Family List | FOC Vol. 19 | Acanthaceae | Peristrophe

9. Peristrophe fera C. B. Clarke in J. D. Hooker, Fl. Brit. India. 4: 556. 1885.

野山蓝 ye shan lan

Peristrophe fera var. intermedia C. B. Clarke; P. jalappifolia Nees.

Herbs to 1 m tall, erect. Stems 4-angled, sulcate, pubescent. Petiole 5-10(-20) mm; leaf blade ovate to ovate-lanceolate, 5-10 × 2-4.3 cm, both surfaces pubescent, secondary veins 3-5 on each side of midvein, base broadly cuneate, margin subentire or apically obscurely dentate, apex acuminate. Cymes terminal or axillary in apical leaf axils, densely pubescent; outer involucral bracteoles ovate to oblong, unequal in size, slightly villous, base subcordate, margin ciliate, apex acuminate; larger outer involucral bracteoles ca. 1.5 × 0.8-1 cm; smaller outer involucral bracteoles 4/5-5/6 size of larger ones; inner involucral bracteoles 2.2-2.5 mm. Calyx 4-5 mm, pubescent; lobes linear, apex acuminate. Corolla 3-4 cm, outside pubescent; tube ca. 1.5 mm in diam.; lip in lower position broadly elliptic, apex emarginate; lip in upper position narrowly oblong, apex 3-lobed. Staminal filaments ca. 1.5 cm, villous; anther thecae linear, parallel, slightly unequally inserted. Ovary pubescent; style basally hirsute. Capsule ca. 1.4 cm, pubescent. Seeds ca. 1.5 × 1.5 mm. Fl. Jul-Aug.

Dense forests. Guizhou, Hainan, Yunnan [India].


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