Volume 13 > Part 1 > Year 2015 > Page 125 > Ericaceae > Lyonia

2. Lyonia ovalifolia (Wall.) Drudewfo-0001047539

in Engler & Prantl, Nat. Pflanzenfam. 4(1): 44. 1889; Sleumer, Fl. Males., Ser. I, Spermat. 6(5): 675. 1967; Judd, J. Arnold Arbor. 62(2): 149. 1981; Sleumer, Dansk Bot. Ark. 23(1): 80. 1963; R.C.Fang & P.F.Stevens, Fl. China 14:462. 2005.— Andromeda ovalifolia Wall., Asiatic Res. 12: 391. 1820.— Xolisma ovalifolia (Wall.) Rehd, J. Arnold Arbor. 5: 52. 1924; H.R.Fletcher, Fl. Siam. 2: 315. 1938. Fig. 6D–G; Plate XII: 3–5.

Accepted Name : This is currently accepted.

Description : Deciduous to semi-evergreen shrub to moderate-sized tree, to 7 m tall; young branches terete, often pubescent turning glabrous; buds 4–8 by 2–4 mm. Leaves ovate or elliptic to slightly obovate, 5–15 by 3.5–8.5 cm; base rounded to cordate, or widely cuneate; margin slightly revolute; apex acute to acuminate; abaxial surface sometimes papillose or glaucous; midrib prominent beneath; veins 7–12 pairs on each side of midrib, secondary veins clearly prominent beneath; petiole 5–15 mm long. Inflorescences 6–20 cm long, usually with 2–4 large, leaf-like bracts 2–8 cm long near base; peduncle and rachis hairy to subglabrous; rachis usually ridged; pedicels 2–5.5 mm long, hairy to glabrous. Calyx lobes ovate to triangular, 2.5–5 mm, hairy to subglabrous. Corolla tubular, 6–9 by 2.5–3.5 mm, hairy outside; lobes triangular, 0.8–1 by 0.8–1 mm, apex obtuse, recurved. Filaments 5–9 mm long, with 2 spurs near the apex, ca 0.5 mm long. Styles 6–8 mm long; stigma obtuse. Capsules usually subglobose to globose, 2.5–4.5 by 3.5–5.5 mm, with 5 pale quite to sometimes only slightly thickened sutures that in dehiscence remain attached to and adjacent to the valve.

Thailand : Common in Northern and North-Eastern Thailand.

Distribution : Nepal (type), India, Pakistan, Myanmar, S China, Indochina, Peninsular Malaysia.

Ecology : In dry deciduous, oak-pine forests and open montain forests, 800–2,500 m alt.

Vernacular : Mao daeng (เม้าแดง)(Chiang Mai).