钝萼爵床 dun e jue chuang

Mananthes amblyosepala (D. Fang & H. S. Lo) C. Y. Wu & C. C. Hu.

Shrubs 30-50 cm tall. Stems terete, glabrous. Petiole 0.8-3 cm, glabrous; leaf blade ovate to elliptic, 9-17 × 4.5-8 cm, papery, glabrous, secondary veins 5-7 on each side of midvein, base attenuate to rounded, margin subentire, apex acute. Spikes terminal or axillary, 2-23 cm, interrupted, simple or branched; peduncle 1.5-5 cm; rachis 4-angled, sulcate, bifariously puberulent, with 1 flower per node; bracts triangular to rarely narrowly triangular, 1.5-3 mm, subglabrous; bracteoles narrowly triangular, ca. 2 mm, margin ciliolate. Calyx ca. 5 mm, 5-lobed; lobes elliptic-lanceolate, both surfaces usually puberulent to subglabrous, apex obtuse to rounded. Corolla light yellow, ca. 1.3 cm, outside retrorsely puberulent; lower lip 3-lobed, lobes ca. 1.5 mm and apex rounded; upper lip ovate-triangular, ca. 5 mm, erect, apex emarginate. Staminal filaments ca. 3 mm, glabrous; anther thecae ellipsoid, ca. 1.5 mm, unequal, superposed, lower one spurred at base. Ovary pubescent at tip; style 8-11 mm, sparsely puberulent. Capsule clavate, ca. 1.5 cm, pubescent. Seeds ovate in outline, ca. 1 × 1 mm, verrucose. Fl. Mar-May, fr. Aug.

● Forests on limestone slopes. Guangxi.