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

5. Pseuderanthemum coudercii Benoist, Notul. Syst. (Paris). 5: 111. 1936.

狭叶钩粉草 xia ye gou fen cao

Subshrubs or perennial herbs, 30-50 cm tall. Stems subterete to 4-angled, pubescent, glabrescent. Petiole ca. 5 mm; leaf blade oblong, lanceolate, or linear, 3-11 × 0.2-2.5 mm, both surfaces glabrous, secondary veins 6-12 on each side of midvein, base cuneate, margin entire or slightly undulate, apex acuminate to rarely acute. Thyrses terminal, to 20 cm; rachis pubescent; dichasia 1-4-flowered; basal bracts 1-3, large, leaflike, longer than calyx; apical bracts linear, shorter than calyx, villous; bracteoles linear, villous. Calyx 5-6 mm; lobes linear, villous. Corolla light purplish red, slightly pubescent; tube ca. 3 cm; lower lip ca. 1.2 cm, lobes ovate to ovate-elliptic; upper lip 2-lobed, lobes oblong. Stamens 2; filaments connate at base; staminodes 2, smaller than stamens. Capsule ca. 1.8 cm, sparsely pubescent. Seeds obovate in outline, ca. 3.5 mm, tuberculate-punctate, glabrous. Fl. Jun-Aug, fr. Sep.

Forests, streamsides; 100-400 m. Hainan [Cambodia].


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