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FOC | Family List | FOC Vol. 19 | Annonaceae | Miliusa

7. Miliusa horsfieldii (Bennett) Pierre, Fl. Forest. Cochinch. t. 38. 1881.

囊瓣木 nang ban mu

Saccopetalum horsfieldii Bennett, Pl. Jav. Rar. 165. 1840; Alphonsea prolifica Chun & F. C. How; Miliusa prolifica (Chun & F. C. How) P. T. Li; M. tectona C. E. Parkinson; S. arboreum Elmer; S. lineatum Craib; S. prolificum (Chun & F. C. How) Tsiang; S. unguiculatum Fischer.

Trees to 15[-35] m tall, evergreen, d.b.h. to 50 cm. Bark ochre-colored. Branches villous. Petiole ca. 2 mm, villous; leaf blade elliptic to oblong, 4-13 × 1.8-4 cm, papery, abaxially villous, adaxially sparsely pubescent but densely so on veins, secondary veins 10-14 on each side of midvein, base rounded and slightly oblique, apex acute to acuminate. Inflorescences axillary, cymose, 1-30-flowered. Pedicel 1.5-3 cm, recurved. Sepals broadly triangular, ca. 3(-10) × 1-2 mm. Petals dark red; outer petals lanceolate, ca. 7(-13) × 1-2 mm, reflexed at anthesis; inner petals ovate-lanceolate, 20-26(-40) × 5-10(-15) mm, incurved, with a conspicuous midvein. Stamens ca. 1 mm. Carpels incurved crescent, densely sericeous; ovules 8 per carpel, in 2 series; stigmas ovoid, glabrous. Monocarp stipes 1-1.5 cm; monocarps 5-20, dark red at maturity, globose to subglobose, 1-2 cm in diam., puberulent. Seeds 2-8 per monocarp, reniform, ca. 11 × 5 mm. Fl. Mar-Jun, fr. Jul-Aug.

Dense forests, woodlands; 300-1000 m. Guangdong, Hainan [India (Andaman and Nicobar Islands), Indonesia, Laos, Malaysia, Myanmar, Philippines, Thailand; Australia].

The timber from Miliusa horsfieldii is straight, hard, non-splitting, and fine grained and is used for vehicle construction, agricultural implements, machinery, etc. Merrill and Chun (Sunyatsenia 2: 230. 1935) misidentified material of this species as Alphonsea mollis Dunn.

Miliusa horsfieldii is listed as Vulnerable (VU A2c) by the IUCN Red List of Threatened Species (Version 2010.3; http://www.iucnredlist. org; accessed on 6 Oct 2010, as Saccopetalum prolificum).


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