Ixora nigricans (PROSEA)

Plant Resources of South-East Asia Introduction

List of species

Ixora nigricans R.Br. ex Wight & Arn.

Protologue: Prodr. fl. Ind. orient. 1: 428 (1834).

• Thailand: khem tuut maa (Sukhothai), khem nam, khem phuut maa (Surat Thani, Yala)
• Vietnam: bông trang trắng, dơn trắng.

India, Burma (Myanmar), Vietnam, Thailand, Peninsular Malaysia, Sumatra, Java, Bali.

In Vietnam I. nigricans is used similar to I. coccinea . The leaves are reported to be used in India for antidysenteric purposes.

A shrub or small tree up to 5 m tall; leaves elliptical, obovate or oblong, 7-12.5(-18) cm × 4-6.5 cm, herbaceous, base acute, apex acutely acuminate, with 7-9 secondary veins, dark green above, pale green below, turning black when dried, petiole about 5 mm long, stipules subtruncate with a very long awn; inflorescence loose, subpaniculiform, peduncle 2-4.5 cm long, often nodding, with 100-200 flowers; flowers with pedicel 0.5-2 mm long, calyx lobes oblong-triangular, about 1.2 mm long, corolla tube 8-12 mm long, glabrous, lobes 6-7 mm long, acute, white, fragrant, style about 6 mm long exserted, glabrous, anthers 4-6 mm long, violet; fruit globose, black. I. nigricans is found in evergreen forest on fertile soils from sea-level up to 800 m altitude.

97, 182, 288, 768, 1035, 1126, 1128, 1591.

M.C. Ysrael & J.L.C.H. van Valkenburg