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

19. Leptodermis pilosa Diels, Notes Roy. Bot. Gard. Edin­burgh. 5: 276. 1912.

川滇野丁香 chuan dian ye ding xiang

Shrubs, 0.7-2(-3) m tall; branches subterete, young branches tomentulose or pubescent, old branches glabrescent, with thin, lamellar, longitudinally fissured bark. Petiole 1-5 mm, ± hairy; leaf blade papery, occasionally thinly leathery, shape and size often variable, broadly ovate, ovate, oblong, elliptic, or lanceolate, 0.5-2.5 × ca. 1.5 cm, both surfaces sparsely to densely pilose or subglabrous, base cuneate or attenuate, margins usually ciliate, apex acute, obtuse, or sometimes rounded; lateral veins 3-5 pairs, slightly prominent or inconspicuous abaxially; stipules broadly triangular, pilose or tomentose, cuspidate-apiculate, usually 1-2 mm. Cymes terminal or axillary near tips of branches, usually 3(-7)-flowered; flowers sessile or shortly pedicellate; bracteoles scarious, transparent, longer than calyx, ± hairy, 2/3-3/4 connate, free portion subulate-acuminate, apiculate, veined, ciliate. Calyx tube ca. 2 mm; lobes 5, 1-1.2 mm, ciliate, obtuse or subtruncate. Corolla funnelform; tube 9-10(-13) mm, densely tomentulose outside, villous inside; lobes 5, broadly ovate, 2-2.5 mm, margins narrow and thin, inflexed, apex incurved. Stamens 5, inserted in corolla tube throat; filaments short; anthers linear, slightly exserted in short-styled flowers, included in long-styled flowers. Style usually with (3-)5 filiform stigmas, exserted in long-styled flowers, included in short-styled flowers. Fruit 4.5-5 mm; seed aril reticulate, adherent to testa. Fl. Jun, fr. Sep-Oct.

● Thickets; 600-3800 m. S Gansu, W Hubei, S Shaanxi, Sichuan, Xizang, Yunnan.

1 Branches spiny.   19a var. acanthoclada
+ Branches not spiny   (2)
2 (1) Cymes in spikelike compound inflorescences.   19d var. spicatiformis
+ Cymes not in spikelike compound inflorescences   (3)
3 (2) Shrubs with branches tomentulose or pubescent when young, glabrescent when old.   19c var. pilosa
+ Shrubs sparsely pilose.   19b var. glabrescens

Lower Taxa


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