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FOC | Family List | FOC Vol. 19 | Rubiaceae | Wendlandia

17. Wendlandia luzoniensis Candolle, Prodr. 4: 412. 1830.

吕宋水锦树 lü song shui jin shu

Wendlandia luzoniensis var. membranifolia (Elmer) Cowan; W. membranifolia Elmer.

Shrubs or small trees; branches flattened-quadrate, glabrous to sparsely strigillose. Leaves opposite; petiole 0.8-1.2 cm, glabrous to sparsely strigillose; blade drying papery, ovate-oblong or elliptic, 10-20 × 4.5-7 cm, glabrous on both surfaces or sparsely strigillose on principal veins abaxially, base cuneate to acute, apex acute to shortly acuminate; secondary veins 6-9 pairs; stipules generally persistent, suborbicular, obovate, oblanceolate, or pandurate, 4-6 × 1-3 mm, glabrous or sparsely strigillose, apex erect to spreading, obtuse to rounded. Inflorescences paniculate, pyramidal to broadly obconic in outline, branched to 3 or 4 orders, 10-12 × 12-15 cm, densely strigillose to hirtellous, pedunculate; peduncle 0.8-1 cm; bracts linear to narrowly lanceolate, 0.5-2 mm. Flowers sessile or subsessile. Calyx with hypanthium portion subglobose, 1-1.5 mm, densely puberulent to strigillose; limb deeply lobed; lobes triangular to lanceolate, 0.5-1 mm, glabrous. Corolla white, tubular or tubular-funnelform, glabrous outside; tube 3-4 mm, villosulous in throat; lobes ovate, 0.8-1.5 mm. Anthers elliptic, ca. 1 mm, subsessile, partially exserted. Stigma 2-lobed, ca. 0.3 mm. Capsules subglobose, 1.5-2 mm in diam., moderately to sparsely strigillose. Fl. and fr. Jul-Aug.

Forests. Taiwan (Taidong) [?India, Philippines, ?Vietnam].

Wendlandia membranifolia was cited by W. C. Chen (in FRPS 71(1): 214. 1999) as a synonym of W. luzoniensis, apparently based on Cowan’s 1932 treatment (Notes Roy. Bot. Gard. Edinburgh 16: 294. 1932). However, Cowan subsequently (Notes Roy. Bot. Gard. Edinburgh 18: 187. 1934) separated these plants as W. luzoniensis var. membranifolia; because of the inclusion of the name W. membranifolia, this other name is here added too.


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