Syzygium prainianum (King) Chantar. & J. Parn.

Chantaranothai, Pranom, 2024, Notes on the genus Syzygium (Myrtaceae) from Cambodia, Thailand, Vietnam, China and Taiwan, PhytoKeys 244, pp. 151-161 : 151-161

Syzygium prainianum (King) Chantar. & J. Parn. , Kew Bull. 48: 608. 1993.

Eugenia prainiana King , J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 70 (1): 116. 1901. Type: Peninsular Malaysia, Perak, Blanta Mabok, Apr. 1890, Wray 3990 (lectotype, designated by Chantaranothai and Parnell 1994, p. 97: K).

Syzygium prainianum subsp. minor Chantar. & J. Parn. , Kew Bull. 48: 608. 1993. Type: Thailand, Phangnga, Khao (Kao) Kata Kwam, 9 Mar. 1930, Kerr 18481 (holotype BM, isotypes BKF, K [K 001007999]), syn. nov.

Type.

Based on Eugenia prainiana King.

Distribution.

Thailand, Peninsular Malaysia, Borneo.

Ecology.

In evergreen forest, 900 m alt.

Notes.

Chantaranothai and Parnell (1993) proposed subsp. minor for Thai material with a slightly shorter hypanthial cup (3–4 mm long vs 5 mm long for the typical variety), stamens and style. After examination of Gardner & Chamchumroon ST 2467 K [001007729], a second new specimen collected from Trang, Thailand, I found that these characteristics are variable. Therefore, subsp. minor is here placed into synonymy of S. prainianum . This species is uncommon in Thailand but widespread in Peninsular Malaysia and Borneo.

Specimens examined.

Trang, Yanta Khao, Khao Banthat Wildlife Sanctuary, valley above Sai Rung Waterfall, Camp 2, 800 m alt., 14 Mar. 2006, Gardner & Chamchumroon ST 2467 (K).