20. Wendlandia oligantha W. C. Chen, Acta Phytotax. Sin. 21: 399. 1983.
龙州水锦树 long zhou shui jin shu
Shrubs or trees, 3-10 m tall; branches flattened to quadrangular, grayish brown, glabrous or sparsely or densely puberulent to pilosulous becoming glabrescent. Leaves opposite; petiole 3-15 mm, glabrous or mealy puberulent; blade drying leathery, adaxially dark brown and often shiny, elliptic, ovate, or ovate-oblong, 3-10.5 × 1.5-5 cm, adaxially glabrous, abaxially glabrous or sparsely to densely strigillose or puberulent along principal veins, base cuneate or acute, apex acute or shortly acuminate; secondary veins 5-7 pairs, hardly visible abaxially; stipules deciduous, spatulate to pandurate, 1.5-2.5 mm, pilosulous or puberulent, apex spreading to reflexed, rounded to obtuse. Inflorescences laxly paniculate, branched to 2 or 3 orders, 7-20 × 4-18 cm, moderately to densely pilosulous, sessile and tripartite or pedunculate; peduncle 0.5-1.5 cm; bracts linear, narrowly oblanceolate, or triangular, 1-5 mm. Flowers sessile to subsessile. Calyx glabrous to sparsely strigillose; hypanthium portion subglobose, ca. 0.5 mm; limb lobed nearly to base; lobes triangular to lanceolate, 0.3-0.5 mm. Corolla white, salverform to funnelform, outside glabrous; tube ca. 2.5 mm, rather abruptly narrowed at base, sparsely villous in throat; lobes triangular, ca. 1 mm. Anthers elliptic, ca. 0.7 mm, subsessile, partially exserted. Stigma 2-lobed, ca. 0.2 mm. Capsules subglobose, ca. 1.5 mm in diam., glabrous. Fl. Jul-Aug, fr. Aug-Dec.
● Rocks in forests or thickets in valleys; 300-1000 m. Guangxi.