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

13. Strobilanthes wangiana Y. F. Deng & J. R. I. Wood, J. Trop. Subtrop. Bot. 18: 473. 2010.

启无马蓝 qi wu ma lan

Herbs to 1 m tall, perennial, isophyllous. Stems sulcate, obscurely bifariously pubescent, glabrescent; nodes pustulose, sparsely pubescent. Petiole 4-5(-20) mm, almost glabrous; leaf blade elliptic to ovate-elliptic, 2.5-6 × 1.1-2.8 cm, both surfaces glabrous except for large-celled trichomes adaxially along midvein, cystoliths prominent, secondary veins 5-7 on each side of midvein, base cuneate and attenuate onto petiole, margin crenate, apex obtuse. Inflorescences terminal, subcapitate spikes, 2-4 cm, few flowered; bracts leaflike; basal bracts elliptic, 2-4 × 1-1.4 cm, apically diminishing in size, margin serrate; apical bracts oblong, 1.4-2 × 0.4-0.6 cm, abaxially sparsely pubescent, adaxially glabrous, margin ciliate and entire except for a few teeth near apex; bracteoles linear-lanceolate, 9-11 × ca. 1 mm, abaxially silky pubescent, adaxially glabrous, margin ciliate. Flowers imbricate on rachis, sessile. Calyx 1-1.3 cm, 5-lobed to ca. 3 mm above base; lobes linear-oblanceolate, 10-14 × 0.6-1 mm, outside silky pubescent, inside silky pubescent from middle apically and glabrescent toward base, margin ciliate. Corolla purplish, 3.5-4 cm, ventricose and bent to ca. 90° at mouth, outside pubescent, inside glabrous except for trichomes retaining style; tube basally cylindric and ca. 2 mm wide for ca. 1 cm then gradually widened to ca. 1 cm at mouth; lobes ovate, 4-5 × 4-5 mm, apex obtuse. Stamens 4, included; filaments pubescent, shorter pair 1-2 mm, longer pair 3-4 mm; anther thecae oblong, ca. 1.5 mm. Ovary ca. 2 mm, glabrous except for a few trichomes at tip. Capsule oblong, ca. 10 × 3 mm, glabrous, 4-seeded. Seeds ovate in outline, ca. 3 × 2 mm, compressed, pubescent; areola small. Fl. Aug-Sep, fr. Nov.

● Forests; 1200-2300 m. Yunnan.


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