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

24. Strobilanthes fengiana Y. F. Deng & J. R. I. Wood, J. Trop. Subtrop. Bot. 18: 481. 2010.

冯氏马蓝 feng shi ma lan

Subshrubs to 50 cm tall, perennial, weakly anisophyllous. Stems 4-angled, sulcate, glabrescent. Petiole 1-2 cm, sulcate, bifariously pubescent; leaf blade ovate, smaller of pair 6-8 × 3-4 cm and larger one 10-14 × 4-6 cm, abaxially glabrous except pilose along midvein, adaxially glabrous and with prominent cystoliths, secondary veins 4-7 on each side of midvein, base rounded to broadly cuneate, margin undulate and ciliate, apex acuminate. Inflorescences terminal, subcapitate spikes, 1.5-3 cm; rachis pubescent; bracts lanceolate, 10-15 × ca. 2 mm, abaxially glabrescent, adaxially sparsely pubescent; bracteoles lanceolate, 8-10 × ca. 2 mm, abaxially glabrous, adaxially densely covered with multicellular large-celled trichomes. Calyx ca. 1.2 cm, 5-lobed almost to base; lobes linear-spatulate, outside apically covered with multicellular large-celled trichomes, margin ciliate with multicellular large-celled trichomes, apex acute. Corolla purple, 3-3.5 cm, outside pilose with large-celled trichomes, inside glabrous except for trichomes retaining style; tube basally cylindric and ca. 2 mm wide for ca. 1.5 cm then bent to ca. 90° above middle and gradually widened to ca. 1.3 cm at mouth; lobes rounded. Stamens 4, included; filaments pilose, shorter pair ca. 6 mm, longer pair ca. 8 mm; anther thecae oblong, ca. 2 mm. Capsule oblong, 12-14 × 3-4 mm, glabrous, 4-seeded. Seeds ovate in outline, ca. 3 × 2 mm, pubescent; areola small. Fl. Sep-Dec, fr. Nov-Feb.

● Forests; 1200-1800 m. Yunnan (Xichou).


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