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

9. Morinda hainanensis Merrill & F. C. How, Sunyatsenia. 5: 188. 1940.

海南巴戟 hai nan ba ji

Lianas; branches at base with persistent leafless stipules, when young densely yellow-, clear-, or ferruginous strigillose to -hirtellous, becoming scabrous to glabrescent, brownish gray. Leaves opposite; petiole 5-11 mm, densely villosulous to hirtellous; blade drying papery, matte and gray on both surfaces, narrowly elliptic, elliptic-oblong, oblong-lanceolate, or linear-lanceolate, 5-9 × 1.2-2.5 cm, adaxially sparsely strigillose to hirtellous, abaxially densely villosulous, pilosulous, or sericeous, base acute or attenuate, apex acute to acuminate; secondary veins 6-9 pairs, with pilosulous domatia; stipules fused into a tube or spathe, 2.5-6 mm, pilosulous to hirtellous, on each side with 2 bristles 0.2-1 mm. Inflorescence terminal; peduncles 3-9, fasciculate to umbellate, 5-10 mm, densely sericeous to strigillose, as a group sometimes subtended by 1 or 2 linear bracts 0.5-1 mm; heads 1 per peduncle, hemispherical, 3-4 mm in diam., 3-8-flowered. Flowers fused at base, apparently distylous. Calyx with hypanthium puberulent to densely strigillose; limb 0.5-0.8 mm, glabrescent, truncate. Corolla salverform, outside puberulent to pilosulous, inside densely villous in upper part of tube and onto lobes; tube ca. 1 mm; lobes 4, narrowly lanceolate, ca. 2 mm, apically thickened and rostrate. Drupecetum subglobose or compressed globose, 6-8 mm in diam. Drupes fully fused, subglobose, ca. 3 mm. Fl. May, fr. May.

● Wet places under dense forests on hills; ca. 900 m. Hainan.


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