Revisions and key to the Vernonieae (Compositae) of Thailand Author Bunwong, Sukhonthip Maejo University Phrae Campus, Mae Sai, Rong Kwang, Phrae 54140, Thailand Author Chantaranothai, Pranom Applied Taxonomic Research Center, Department of Biology, Faculty of Science, Khon Kaen University, Khon Kaen 40002, Thailand Author Keeley, Sterling C. Department of Botany, University of Hawaii, Honolulu, HI 96816 USA text PhytoKeys 2014 2014-05-13 37 25 101 http://dx.doi.org/10.3897/phytokeys.37.6499 journal article http://dx.doi.org/10.3897/phytokeys.37.6499 1314-2003-37-25 FFE8FFACFF84FFA95573FFFECD03F742 576215 Acilepis kingii (C.B.Clarke) H.Rob. & Skvarla, Proc. Biol. Soc. Washington 122(2): 141. 2009. Acilepis kingii Vernonia kingii C.B.Clarke, Compos. Ind. 12. 1876. Type. Myanmar, Yomah province, Pegu, Irrawaddy & Sittang Valley, S. Kurz s.n. (holotype: K!). Description. Perennial herbs, 1-1.5 m tall. Stems erect, conspicuously ribbed, puberulous. Leaves 10-20 by 4-8 cm, lanceolate, margin serrate, apex acuminate, base attenuate, subcoriaceous; both surfaces scabrous with whip-shaped hairs and capitate glands; lateral veins 9-10-paired; petioles up to 2.5 cm long. Capitulescences terminal and axillary, paniculate. Capitula campanulate, 10-12 mm long, pedunculate. Receptacles flat, 2-2.5 mm in diam., hairy. Involucres narrowly campanulate, in 4-5 series, 5-6 mm long, 3-3.5 mm in diam., herbaceous. Phyllaries light green or purple apically, margin piliferous, outer surface arachnoid, capitate glands; the outer and the middle ones ovate, apex obtuse and apiculate; the inner ones ovate-lanceolate to oblong, apex obtuse or apiculate. Florets 8-12; corollas funnelform, purple or white, glandular; corolla tubes 4-5 mm long; corolla lobes 2.5-3 mm long. Anthers yellowish, 2.5-3 mm long, apical appendage acute, base acute. Styles purple, 5-7 mm long, branches 2-3 mm long. Achenes subterete, 2.5-3.5 mm long, 10-ribbed, pubescent, glands capitate. Pappus bristles, the inner ones 6-6.5 mm long. Distribution. Thailand: Mae Hong Son, Chiang Mai, Chiang Rai. China (Yunnan), India, Myanmar, Laos. Specimens examined. Thailand. Chiang Mai, Chiangdao wildlife sanctuary, 19°26.08'N , 98°53.76'E , 20 Dec 2003, S. Bunwong 78 (KKU, US); Doi Chiangdao, 30 Jan 1921, A.F.G. Kerr 4729 (BK, BM, K); Doi Chiangdao, 9 Mar 1982, Y. Paisooksantivatana 840-82 (BK); Doi Chiangdao, 25 Jan 1996, W. Nanakorn et al. 5683 (QBG); Chiang Rai, Doi Thung, 15 Jan 1975, R. Geesink, P. Hiepko & C. Phengklai 8277 (BKF, C, K, L, P). Ecology. Hill evergreen or pine-oak forest, alt. 1000-1800 m; flowering January to March. Diagnostic characters. Acilepis kingii is recognized by obtuse and apiculate phyllaries and loose paniculate capitulescence. Vernacular name. Muang Doi (ม่วงดอย).