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

7. Morinda citrina Y. Z. Ruan, Fl. Reipubl. Popularis Sin. 71(2): 331. 1999.

金叶巴戟 jin ye ba ji

Lianas; branches at base with persistent leafless stipules, when young densely puberulent, strigillose, or hirtellous, becoming glabrescent, angled, brown, purplish blue, or purplish black. Leaves opposite; petiole 2-6 mm, densely puberulent, hirtellous, or pilosulous; blade drying membranous to papery, adaxially gray, abaxially golden yellow or brownish yellow, matte on both surfaces, ovate-lanceolate, oblong-linear, or elliptic, 5-12 × 1.5-3 cm, adaxially sparsely to moderately puberulent, strigillose, hispidulous, or hirtellous, abaxially moderately to sparsely strigillose, puberulent, or hirtellous especially along principal veins, base cuneate to acute, apex acuminate or acute; secondary veins 4-6 pairs, with pilosulous domatia; stipules fused into a tube or spathe, 2.5-4 mm, moderately to densely strigillose to pilosulous, truncate, on each side with 1 or 2 bristles 0.3-1 mm. Inflorescence terminal; peduncles 2-5, fasciculate or umbellate, 6-8 mm, densely puberulent to pilosulous, as a group subtended by 1 or 2 stipuliform bracts; heads 1 per peduncle, hemispherical, 4-5 mm in diam., 1-5-flowered. Flowers fused at base or for up to half of hypanthium, biology not noted. Calyx strigillose, puberulent, or glabrescent; limb 0.3-0.5 mm, truncate. Corolla white, salverform, outside densely puberulent; tube 1.2-2 mm, inside villous; lobes 4(or 5), narrowly oblong to lanceolate, 2.5-3 mm, apically thickened and rostrate. Drupecetum subglobose to oblate, 8-12 mm in diam. Drupes fully fused, orange, subglobose, 3-5 mm. Fl. Apr-Jul, fr. Oct-Nov.

● Forests or thickets on mountains; 500-1300 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hunan, Jiangxi, Zhejiang.


1 Older leaves usually drying greenish, sometimes brown, or rarely yellow, usually not hirsutulous but rather thin and sparsely hairy along midrib.   7a var. chlorina
+ Older leaves usually drying golden yellow or brownish yellow, hirtellous especially along midrib.   7b var. citrina

Lower Taxa


 

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