Volume 8 > Part 1 > Year 2005 > Page 24 > Euphorbiaceae > Acalypha

1. Acalypha brachystachya Hornem.wfo-0000491787

Hort. Hafn.: 909. 1807; in Willd. Erum. Hort. Berol.: 992. 1809; Müll.Arg. in DC., Prodr. 15(2): 870. 1866; Hook.f., Fl. Brit. Ind. 5: 416. 1887; Forbes & Hemsl., J. Linn. Soc. Bot. 26: 437. 1894; Pax & K.Hoffm. in Engl., Pflanzenr. IV. 147. xvi: 101. 1924; Gagnep. in Lecomte, Fl. Indo-Chine 5: 339. 1925: Backer & Bakh.f., Fl. Java 1: 489. 1963; Radcliffe-Smith, Kew Bull. 28: 526–527. fig. 1A. 1974; Airy Shaw, Kew Bull. 36: 247. 1981; Kew Bull. 37: 2. 1982; Philcox in Dassan. & Fosberg, Rev. Handb. Fl. Ceylon 11: 130. 1997.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Annual herb, 10–55 cm; stem erect. Stipules narrowly triangular, 0.8–1 mm long. Leaves: petiole terete, 1–5(–7) cm long; blade ovate or lanceolate-ovate, 2.5(–7.5) by 1–3(–4) cm, chartaceous, base cordate or obtuse, sometimes cuneate, margin serrate or crenulate, apex acute, obtuse or acuminate, scabrous on both surfaces, nerves in 2–4 pairs. Inflorescences in groups of (1–)4, axillary, 0.5–1.5(–2) cm long, staminate part apical. Staminate flowers 5–8 per node, buds subglobular, 0.3–0.5 mm in diam.; bracts ovate-oblong or ovate-lanceolate, 0.6–1 by ca 0.2 mm, pubescent outside; pedicel 0.1–0.2 mm long; sepals ovate, ca 0.5 by 0.3 mm, glandular outside, puberulent. Pistillate flowers 1(–3) per node; bracts broadly ovate, 4–6 by 5–9 mm, with 3–5 deep lobes, margin, glabrous inside, hispidulous with glandular hairs outside; sepals 3, ovate, 0.8–1 by 0.3–0.5 mm, hispidulous; ovary globular, 0.8–1 mm in diam., hispidulous; stigmas 1–2.5 mm long. Fruits 3-lobed, globular or subglobular, 1–1.5 by 1.2–2 mm, hispidulous. Seeds ovoid, 1–1.2 by 0.8–1 mm. Sometimes solitary irregular pistillate flowers at the end of branches; pedicel 0.5–1 mm long; sepals 3, ovate-lanceolate, pubescent; style 1, attached at base of ovary, apex fimbriate; ovary 1 locule in fruit; fruits indehiscent, oblate, 2–3 by ca 2 mm, pubescent, with longitudinal suture in the center, apical appendage cup-shaped, 0.8–1.2 mm wide, apically fimbriate.

Thailand : NORTHERN: Chiang Mai (Doi Suthep, Doi Inthanon), Lamphun, Lampang; NORTH-EASTERN: Phetchabun; SOUTH-WESTERN: Kanchanaburi, Prachuap Khiri Khan.

Distribution : Tropical Africa, Nepal, Phutan, India, Sri Lanka, Indochina (type), Sumatra, Java, Lesser Sunda Islands, Timor, Sulawesi.

Ecology : Open lands, limestone hills, mixed deciduous forests, 200–1,300 m alt.

Vernacular : Tamyae doi bai bang (ตำแยดอยใบบาง).