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

61. Ophiorrhiza rufopunctata H. S. Lo, Bull. Bot. Res., Har­bin. 10(2): 15. 1990.

红腺蛇根草 hong xian she gen cao

Herbs, weak at base, ascending above, to 15 cm tall; stems brownish hispidulous or -strigose. Leaves in somewhat unequal pairs; petiole 0.3-1.5 cm, pilosulous or hirsutulous; blade drying papery, oblong-ovate, ovate, or broadly ovate, 3-8(-10) × 2-3.5 cm, adaxially glabrescent and usually with scattered reddened gland dots, abaxially with red gland dots and glabrous or hispidulous to strigose on veins, base obtuse to subrounded or subcordate, often oblique, margins undulate, apex obtuse, subrounded, or acute; secondary veins 4 or 5 pairs; stipules persistent at least on upper nodes, subtriangular to ovate, 2-3 mm, obtuse and glandular at apex. Inflorescence 1-flowered or usually cymose and 2-5-flowered, densely brown hispidulous; peduncle ca. 1 cm; bracteoles linear-subulate, ca. 3 mm, usually hirtellous and/or with reddish gland dots. Flowers distylous, on short pedicels. Calyx hispidulous and/or with red gland dots; hypanthium turbinate to ellipsoid, ca. 3 mm, 5-ribbed; lobes linear, ca. 3 mm, each sinus with 1 gland. Corolla pale purple, funnelform; tube 18-22 mm, white villous or pilosulous above middle and densely pilosulous at middle inside; lobes ovate, 4-5 mm, dorsally ridged and with very small horn. Capsules 5-6 × ca. 11 mm, hispidulous. Fl. Nov.

● Wet places in forests. Sichuan.

In the protologue and FRPS (71(1): 118. 1999), H. S. Lo noted that the short-styled flowers have the anthers situated in the upper part of the corolla tube and the stigmas situated near its middle, while the long-styled flowers have the anthers situated near the middle of the corolla tube and the stigmas in its throat.


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