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

35. Ophiorrhiza longicornis H. S. Lo, Fl. China. 19: 273. 2011.

长角蛇根草 chang jiao she gen cao

Type: China. Guangxi: Napo, Y. Lin 3-5324 (holotype, GXMI).

Validating Latin description: that of "Ophiorrhiza longicornis Lo" (H. S. Lo, Bull. Bot. Res., Harbin 10(2): 57. 1990).

Herbs, apparently ascending; stems drying brownish red, terete, glabrous. Leaves in somewhat unequal pairs; petiole 1-2 cm, glabrous; blade drying papery or rather thickly papery, abaxially yellowish or greenish yellow with veins brown, narrowly elliptic-ovate to oblanceolate, 4-10 × 1.5-3.5 cm, glabrous on both surfaces, base cuneate, margins entire, apex obtuse then cuspidate or caudate; secondary veins 7-11 pairs; stipules caducous, not seen. Inflorescences cymose to subcorymbose, many flowered, branched to several orders, puberulent; peduncles 1.5-2.5 cm; axes spiciform to helicoid, principal ones ca. 1 cm; bracteoles turning purple when dry, linear-lanceolate, 3-5 mm, sharply acute. Flowers with biology unknown, subsessile. Calyx with hypanthium compressed subglobose-turbinate, ca. 1.5 mm, 5- or 10-ribbed, puberulent; lobes triangular, 0.7-1 mm, subglabrous, with 1 gland in each sinus. Corolla purplish red, tubular, glabrous and slenderly 5-ribbed outside; tube ca. 4.5 mm, inside with white villous ring below middle; lobes subtriangular, 0.4-0.5 mm, dorsally with horn 1.5-2 mm and drying black, apex incurved-rostrate. Capsules not seen. Fl. Apr.

● Forests. Guangxi (Napo).

This name was previously published by H. S. Lo (loc. cit.) but not validly so because the type was not indicated in accordance with Art. 37.6 of the Vienna Code.


 

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