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

36. Justicia microdonta W. W. Smith, Notes Roy. Bot. Gard. Edinburgh. 10: 183. 1918.

小齿爵床 xiao chi jue chuang

Mananthes microdonta (W. W. Smith) C. Y. Wu & C. C. Hu.

Shrubs to 2 m tall, much branched. Young braches reddish when dry, 4-angled, sparsely pilose. Petiole 1-2 cm; leaf blade ovate, (2-)3-5.5 × 1.5-2.5 cm, variable in size, papery, abaxially light green and pilose along midvein, adaxially green and pilose especially along veins, base broadly cuneate and decurrent onto petiole, margin entire, apex shortly acuminate to acute. Spikes terminal, 5-7(-10) cm, unbranched, nodes distant, with 2-4 flowers per node; peduncle short; rachis densely pilose; bracts linear-lanceolate, 3-5 cm; bracteoles similar to bracts. Calyx ca. 7 mm, 5-lobed almost to base; lobes linear-lanceolate, 5-6 mm, pilose along midvein. Corolla white, 1-1.3 cm, outside somewhat pubescent to glabrescent; tube short; limb longer than tube; lower lip 4-5 mm, 3-lobed, lobes pilose inside and ciliate on margin; upper lip 2-lobed. Staminal filaments pilose; anther thecae parallel, superposed, lower one with a white spur at base. Ovary glabrous; style densely pilose. Capsule ca. 2 cm, 4-seeded. Seeds reddish brown, circular in outline, 3-4 mm in diam., rugose-verruculose. Fl. Jun-Aug.

● Thickets; 800-1200 m. Sichuan, Yunnan.


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