Volume 14 > Part 2 > Year 2019 > Page 281 > Malvaceae > Decaschistia

3. Decaschistia parviflora Kurzwfo-0000639081

J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 39: 66. 1870. Fig. 4. Plate XXVI: C.

Accepted Name : This is currently accepted.

Description : Subshrub 0.3–1 m tall; much branched. Leaves narrowly oblong, oblong-ovate to lanceolate, 2–12 by 0.5–5 cm, base rounded, sometimes cuneate to slightly cordate, apex acute to obtuse, margin entire, rarely dentate or serrate, upper surface scabrous with appressed, minute, stellate hairs, rarely glabrous, lower surface densely whitish hairy; basal vein(s) 1, 3(or 5), secondary veins 5–10 on each side of midvein. Petiole 0.5–4 cm long. Flower axillary in upper part of stem or in terminal racemes. Peduncle stiff. Epicalyx lobes 10, linear, 3–5 mm long, outer surface stellate hairy, inner surface glabrous, except sparsely hairy near apex. Calyx 5-lobed, ca 1 cm long, apex of lobes acuminate,1-nerved, outer surface stellate hairy, inner surface appressed hairy. Corolla rotate, white, yellowish, pink, pale pink to red, centre white. Petals obliquely obovate, 2–3.5 by 1.5–2 cm, longitudinally veined, outer surface stellate hairy, inner surface glabrous. Staminal column cylindrical, 5–8 mm long; antheriferous on upper part of column; filaments ca 3 mm long; anthers yellow. Style reddish, much longer than staminal column; style branches 8–10, ca 1.5 cm long; stigmas red. Capsules globose, ca 1.5 cm in diam., densely hairy, 8–10-lobed. Seed reniform, densely appressed hairy.

Thailand : NORTHERN: Nakhon Sawan (Hua Wai, Huai Dang), Sukhothai; NORTH-EASTERN: Phetchabun, Sakon Nakhon (Sawang Daen Din), Kalasin (Phu Sing); EASTERN: Chaiyaphum (Pha Khok Yai Chin), Nakhon Ratchasima (Ban Chum Saeng, Ban Noi Phattana, Lat Bua Khao, Muaeng Phon, Pak Thong Chai, Wang Nam Khiao), Buri Ram, Surin (Khao Sawai, Ban Chan Gual), Sisaket (Kanthrarom); SOUTH-WESTERN: Uthai Thani (Ban Rai, Huai Kha Khaeng), Kanchanaburi (Sai Yok), Phetchaburi (Cha-am, Nong Ya Plong); CENTRAL: Saraburi; SOUTH-EASTERN: Prachin Buri (Krabin Buri, Watthana Nakhon), Chanthaburi.

Distribution : S Vietnam.

Ecology : In evergreen forests, dry dipterocarp secondary forests, common in scrub forests, on roadsides in sandy soil, common along edges of paddy fields, from near sea level to 300 m alt. Flowering and fruiting: May–December.

Vernacular : Thong phan dun (ทองพันดุล)(Ratchaburi); kai u (ไก่อู)(Nakhon Sawan); hua kai oak (หัวไก่โอก)(Nakhon Ratchasima); chaba nu (ชบาหนู)(Central).