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

38. Ophiorrhiza lurida J. D. Hooker, Fl. Brit. India. 3: 82. 1880.

黄褐蛇根草 huang he she gen cao

Herbs, procumbent to ascending, to 20 cm tall; stems puberulent to densely villosulous. Leaves in subequal pairs; petiole (0.1-)0.2-2.8 cm, densely villosulous; blade drying papery, adaxially green, abaxially pale green, ovate, ovate-lanceolate, or elliptic, 0.6-5 × 0.6-2.5 cm, adaxially sparsely hispidulous to hispid, abaxially puberulent or hispid along principal veins, base obtuse, truncate, or subrounded, margins entire, apex obtuse to acute; secondary veins 4 or 5 pairs; stipules generally persistent, triangular to ovate, 2-4 mm, glabrous to hirtellous, acuminate or aristate with 1-3 bristles 2-7 mm. Inflorescences congested-cymose to subcapitate, few to several flowered, glabrous; peduncles 0.5-4 cm; heads ca. 1 × 1 cm; bracts subulate-linear, lanceolate, elliptic-oblong, or spatulate, 3-8 mm, costate, obtuse to acute. Flowers with biology unknown, subsessile or on pedicels to 1.5 mm. Calyx glabrous; hypanthium subglobose, ca. 1.5 mm; lobes narrowly triangular, ca. 1 mm. Corolla white, drying yellow, tubular to inflated, glabrous outside, inside villous in upper part of tube and onto lobes; tube 2.5-4.5 mm; lobes triangular-ovate, 1-1.5 mm, dorsally narrowly winged, obtuse. Capsules not seen in China. Fl. Aug.

Broad-leaved forests, Tsuga forests; [300-]1800-2300 m. Xizang (Mêdog), NW Yunnan [India (Darjeeling, Sikkim)].

Deb and Mondal (Bull. Bot. Surv. India 39(1-4): 67. 1997) described the capsules of Indian plants as flattened obturbinate, 1.5-3 × 5-8 mm, and glabrous to puberulent.


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