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

2. Nertera nigricarpa Hayata, J. Coll. Sci. Imp. Univ. Tokyo. 25(19): 115. 1908.

黑果薄柱草 hei guo bao zhu cao

Creeping herbs; stems quadrate, glabrous. Petiole 1-8 mm, glabrous; leaf blade drying papery, broadly ovate or ovate-reniform, 0.25-1 × 0.3-1.1 cm, glabrous, generally smooth abaxially, base rounded to truncate or cordulate then abruptly attenuate, apex obtuse to broadly rounded; secondary veins 2 or 3; stipules broadly triangular, 1-1.3 mm, glabrous, acute and often glandular. Flowers sessile. Calyx glabrous; ovary portion ovoid, ca. 1 mm; limb truncate to denticulate, 0.1-0.2 mm. Corolla probably pale green, urceolate-funnelform, glabrous; tube ca. 1 mm; lobes triangular, ca. 0.4 mm. Drupes black, ellipsoid to subglobose, 4-4.5 in diam., glabrous; pyrenes 2. Fl. Feb-Jul, fr. Mar-Jan.

Sparse forests, open fields; 900-2500 m. Fujian, Taiwan [Vietnam (Averyanov et al. VH 427, MO!)].

See comments under the genus description regarding the relationship of this species to Nertera granadensis. This is apparently the first report of this species from Vietnam.


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