黄溪楠 huang xi nan

Type: China. Guangxi: Napo, Xiahua, Baikan, on slope, 21 Apr 1977, C. X. Luo 3-5491 (holotype, GXMI - bar code 050450).

Validating Latin description: that of "Koenania [sic!] flava Lo" (H. S. Lo, Bull. Bot. Res., Harbin 18: 282-283. 1998).

Suffrutescent unbranched herbs, to 50 cm tall; stems terete, sparsely to densely villous. Petiole 0.8-2.5 cm, villous; leaf blade drying papery, adaxially black, and abaxially pale, lanceolate to ovate, 5-12 × 2.5-4 cm, glabrous except pilose on principal veins, base cuneate to obtuse, apex acuminate or acute; secondary veins 5-9 pairs; stipules caducous, not seen. Peduncle less than 0.5 cm; involucral bracts several, narrowly lanceolate or linear, 10-15 mm, acuminate; bracteoles narrowly lanceolate or linear, 5-6 mm. Calyx with hypanthium portion ca. 1 mm; lobes 5, narrowly lanceolate, 1.4-2 mm, slightly unequal. Corolla in bud yellow, tubular, and with 5 sharp longitudinal ridges; tube ca. 3 mm; lobes 5, triangular, ca. 1 mm, winged abaxially, apex rostrate-incurved. Fruit not seen. Fl. Apr.

● Valleys. Guangxi (Napo).

This name was previously published by H. S. Lo (loc. cit.) but not validly so because no type was indicated (Vienna Code, Art. 37.1).