e-Flora of Thailand

Volume 10 > Part 4 > Year 2011 > Page 659 > Moraceae > Morus

2. Morus macroura Miq.wfo-0001245087

Pl. Jungh.: 42. 1851; Bureau in DC. Prod. 17: 247. 1873; Corner, Gard. Bull. Singapore 19: 215. 1962; C.C.Berg et al., Fl. Males., Ser. 1, Spermat. 17(1): 26. 2006. Fig 48.


Accepted Name : This is currently accepted.



Synonyms & Citations :

Morus alba var. laevigata Wall. ex Bureau in DC. Prod. 17: 245. 1873.— M. laevigata (Wall. ex Bureau) Hook.f., Fl. Brit. India 5: 492. 1888; Gagnep., Fl. Indo-Chine 5: 708. 1928.


Description : Tree to 20(–32) m tall, deciduous. Leafy twigs 1.5–3 mm thick, puberulous to hirtellous to subtomentose; resting buds 0.3–1 cm long. Leaves distichous; lamina ovate to subovate or (broadly) elliptic, 6–16(–23) by 4–11(–14) cm, entire (or, when juvenile, 3-lobate), chartaceous to subcoriaceous, apex acuminate to acute, base subcordate to rounded (or subcuneate), margin serrate-denticulate (to subentire); upper surface hispidulous to puberulous, chiefly on the main veins, scabrous to smooth, lower surface puberulous to subtomentellous on the veins; lateral veins 3–6(–8) pairs, tertiary venation scalariform; petiole 1.5–6 cm long, puberulous to hirtellous; stipules 1–1.5 cm long, sparsely to densely puberulous to hirtellous, caducous (or subpersistent). Staminate inflorescences axillary (often in the axils of scale leaves at the base of new shoots), solitary or in pairs, spicate (or racemose); peduncle 0.4–2 cm long, puberulous; spike (1–)4–10 cm long; flowers numerous; pedicel 0–1.5 mm long; perianth ca 1.5 mm long, puberulous to tomentellous; stamens ca 2.5 mm long, anthers ca 0.8 mm long. Pistillate inflorescences axillary, (often in the axils of scale leaves at the base of new shoots), solitary (or in pairs), spicate, ebracteate; peduncle 0.5–1.5 cm long, puberulous; spike 6–12 cm long; flowers numerous; tepals ca 1.5 mm long, sparsely puberulous; ovary ca 1 mm long, style ca 0.5 mm long, stigmas 1.5–2 mm long. Infructescences green to pale yellow.


Thailand : NORTHERN: Mae Hong Son, Chiang Mai, Lampang, Phrae, Tak; EASTERN: Chaiyaphum; SOUTH-WESTERN: Kanchanaburi.


Distribution : Bhutan, Sikkim, India (Assam), S China, Burma, Cambodia, Indonesia (Sumatra, Java – type).


Ecology : Mixed deciduous, dry evergreen and montane forests, to 1,200 m alt.


Vernacular : Mon Luang (หม่อนหลวง), mon hok (หม่อนฮอก)(Northern).


CommonName : Mulberry.


Uses: The timber is used for house construction.


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