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

17. Hedyotis cheniana R. J. Wang, Novon. 18: 264. 2008.

焕镛耳草 huan yong er cao

Subshrubs, erect, to 0.5 m tall; stems terete to sulcate, glabrous to densely puberulent, strigillose, or pilosulous. Leaves petiolate; petiole 3-5 mm, glabrous to densely pilosulous; blade drying papery, ovate, elliptic, ovate-oblong, or suborbicular, 1.7-5 × 1.6-2.5 cm, adaxially glabrescent, abaxially puberulent to pilosulous, base broadly obtuse to rounded or truncate, apex acute or shortly acuminate; secondary veins 3 or 4 pairs, poorly to well developed abaxially; stipules persistent, interpetiolar, triangular, 2-3.5 mm, glabrous or densely pilosulous, lacerate or with 5-9 linear lobes or bristles. Inflorescences terminal and in uppermost leaf axils, subcapitate, 1-2 cm in diam., 10-30-flowered, puberulent to pilosulous, subsessile to pedunculate; peduncles to 3 mm; bracts narrowly triangular to linear, 1-3 mm; pedicels 0.5-2 mm. Flowers distylous, shortly pedicellate. Calyx glabrous; hypanthium portion subglobose-ellipsoid, 0.8-1 mm; limb lobed nearly to base; lobes narrowly triangular, 3.5-4 mm, entire to ciliolate, acuminate. Corolla white, salverform, outside glabrous; tube ca. 5 mm, barbate in throat; lobes spatulate-oblong to lanceolate, ca. 2 mm. Anthers exserted or situated in corolla throat, 1-1.5 mm. Stigmas included or exserted, ca. 1 mm. Fruit capsular, subglobose, ca. 2 mm, glabrous, loculicidal then septicidal; seeds 6-10, angled, reticulate. Fl. Jan-Feb, fr. Jun-Nov.

● Dense forests; 600-1000 m. Hainan.

The protologue described Hedyotis cheniana as being glabrous, but two specimens cited there are in fact densely pubescent; the protologue also described the secondary veins as not visible, but in fact they are well developed and usually prominulous abaxially on these specimens.


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