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

34. Leptodermis yui H. S. Lo, J. Trop. Subtrop. Bot. 7(1): 15. 1999.

德浚野丁香 de jun ye ding xiang

Shrubs, 0.5-1.5 m tall; branches and branchlets slender, old branches purplish red, glabrous, young branches with short, soft hairs in 2 bands. Leaves sparsely arranged; petiole 0.3-0.6 cm; blade membranous, adaxially dark brown and abaxially slightly pale when dry, broadly ovate to lanceolate, 1.5-4.5 × 0.7-2 cm, adaxially dispersedly strigose, abaxially glabrous or with sparse stiff hairs on midrib, base broadly cuneate or cuneate, margins fimbriate ciliate, apex obtuse or subacute, sometimes rounded; midrib very compressed abaxially, lateral veins slender, 4 or 5 pairs, conspicuous abaxially; stipules slightly short on upper part of branchlets, ca. 1 mm, apex lacerate, glandular, triangular on lower portion of branchlets, ca. 2 mm, margins with glandular hairs. Flowers 1-3 terminal, sessile; bracteoles 2, base connate (ca. 1 mm), free portion lanceolate or ensiform-lanceolate, ca. 2 mm, sparsely hispid, margins sometimes glandular. Calyx tube ca. 2 mm; lobes 5, narrowly triangular, longer than tube, hispid ciliate, acuminate. Corolla purple, broadly funnelform, apex with tufted long soft hairs; tube 9-10 mm, glabrous outside, covered with white long soft hairs inside; lobes 5, broad, oblate, ca. 5 mm wide, margin crisped, both surfaces villous, apex shallowly 3-lobed. Stamens 5, inserted below throat of corolla tube; filaments short; anthers oblong-linear, ca. 2 mm, included. Style slightly exserted, stigmas 2-lobed, lobes filiform.

● Forest margins; ca. 2500 m. SW Sichuan (Muli).


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