Acilepis tonkinensis
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Ordo: Asterales
Familia: Asteraceae
Genus: Acilepis
Name
Acilepis tonkinensis (Gagnep.) H.Rob. & Skvarla, Proc. Biol. Soc. Washington 122(2): 144. 2009. – Wikispecies link – IPNI link – Pensoft Profile
- Vernonia tonkinensis Gagnep., Bull. Mus. Hist. Nat. 25: 492. 1919.
Type
Vietnam, Tonkin, Balansa 3078 (holotype: P!).
Description
Perennial herbs, 1–1.5 m tall. Stem erect, inconspicuously ribbed, villose. Leaves alternate, 5–10 by 1.5–4 cm, elliptic or obovate, margin serrate, apex acute, base cuneate or truncate, subcoriaceous; upper surface scabrous, lower surface pilose glandular; lateral veins 6–11-paired; petioles up to 5 mm long. Capitulescences terminal, paniculate. Capitula campanulate, 9–12 mm long, pedunculate. Receptacle flat, hairy. Involucres broadly campanulate, in 5–6 series, 8–10 mm long, herbaceous. Phyllaries purple, outer surface arachnoid, glands capitate; the outer and the middle ones ovate, apex acute; the inner ones ovate-lanceolate to oblong, apex apiculate. Florets ca. 20; corollas funnelform, purple, glandular; corolla tubes ca. 5 mm long; corolla lobes ca. 4 mm long. Achenes subterete, ca. 3 mm long, 10-ribbed, pubescent with twin hairs and capitate glands. Pappus bristles, the inner ones 8–9 mm long.
Distribution
Thailand: Chiang Mai. Vietnam.
Specimens examined
Thailand, Chiang Mai, Doi Sa Ket, 18°52.26'N, 99°8.17'E, 15 Feb 1983, H. Koyama, H. Terao & Th. Wongprasert T-33577 (KYO); Doi Sa Ket, J. Kubiniok 392/6 (CMU).
Diagnostic characters
Acilepis tonkinensis can be recognized by its pubescent receptacle and broadly ovate phyllaries with acute apices.
Ecology
Granite bedrock in dry dipterocarp forest, alt. 930–1200 m; flowering January to February.
Vernacular name
Dok Muang Doi (ดอกม่วงดอย).
Taxon Treatment
- Bunwong, S; Chantaranothai, P; Keeley, S; 2014: Revisions and key to the Vernonieae (Compositae) of Thailand PhytoKeys, 37: 25-101. doi
