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

8. Peristrophe floribunda (Hemsley) C. Y. Wu & H. S. Lo, Fl. Hainan. 3: 561. 1974.

海南山蓝 hai nan shan lan

Dicliptera crinita (Thunberg) Nees var. floribunda Hemsley, J. Linn. Soc., Bot. 26: 248. 1890.

Herbs, erect, perennial. Stems stout, 4-angled, sulcate, pubescent. Petiole 0.5-2 cm; leaf blade ovate to lanceolate, 2-9 × 1.5-3.5 cm, both surfaces pubescent along veins, secondary veins 4-6 on each side of midvein, base broadly cuneate to subrounded, margin entire, apex acuminate to acute-acuminate. Cymes terminal or axillary; outer involucral bracteoles narrowly ovate to lanceolate, unequal in size, both surfaces pubescent, base cuneate, rounded, or sometimes cordate, margin entire and ciliate, apex acuminate; larger outer involucral bracteoles 1.5-2 × 0.3-0.5 cm; smaller outer involucral bracteoles 4/5-5/6 size of larger ones; inner involucral bracteoles shorter than calyx. Calyx ca. 4.5 mm, pubescent; lobes ca. 3.5 mm. Corolla light purple to pink, outside pubescent; tube slender, ca. 1 mm in diam.; lip in lower position ovate-elliptic, apex slightly emarginate; lip in upper position oblong, 3-lobed. Staminal filaments ca. 1 cm, pubescent; anther thecae linear, parallel, slightly unequally inserted. Ovary hirsute; style basally hirsute. Capsule 1.2-1.3 mm, densely pubescent. Seeds ca. 2.5 mm in diam. Fl. Jun-Sep.

Valleys, forests. Fujian, Guangdong, Guizhou, Hainan, Hunan, Sichuan, Yunnan [India].


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