Typifications and nomenclatural notes on Indian Myrtaceae Author Byng, James W. Plant Gateway, 5 Talbot Street, Hertford, Hertfordshire, SG 13 7 BX, UK & School of Biological Sciences, University of Aberdeen, Aberdeen, AB 24 3 UU, UK Author Wilson, Peter G. Royal Botanic Gardens, Mrs Macquaries Road, Sydney, NSW 2000, Australia Author Snow, Neil Department of Biology, Pittsburg State University, Pittsburg, Kansas, 66762, U. S. A. text Phytotaxa 2015 2015-06-23 217 2 101 116 http://dx.doi.org/10.11646/phytotaxa.217.2.1 journal article 10.11646/phytotaxa.217.2.1 1179-3163 13634096 12. Syzygium coarctatum (Blume) Byng, N. Snow & Peter G.Wilson , comb. nov. Basionym:— Jambosa coarctata Blume (1850: 99) [ Jambosa coarctata Blume Museum botanicum Lugduno-Batavum 1: 99 (1850)]. Type: sine loc., Blume s.n. ( holotype L!). = Jambosa macrocarpa Sweet (1830: 212) , nom. nud. = Eugenia macrocarpa Roxburgh (1832: 497) , nom. illeg., non Schlechtendal & Chamisso 1830. = Jambosa macrocarpa Miquel (1855: 417) . = Eugenia megacarpa Craib (1931: 652) . = Syzygium macrocarpum (Miq.) Bahadur & R.C.Gaur (1978: 349) . = Syzygium megacarpum (Craib) Rathakrishnan & N.C. Nair (1983: 287) . Lectotype (designated here):— BANGLADESH . “Chalta-jamb, the vernacular name in Chittagong , where it is indigenous in the forests amongst the timber trees,” 1813, Roxburgh s.n. (BM! [barcode BM000944168]). = Eugenia latilimba Merrill (1934: 64) . = Syzygium latilimbum (Merr.) Merrill & L.M. Perry (1938: 216) . Type :— CHINA . Hainan , Chim Shan , Fan Maan Ts’uen , 4–20 May 1932 , McClure 20098 ( holotype PNH†; isotypes A, BM!, K! [barcode K000793866 ], P!). Distribution:— India [ Assam , Meghalaya , Mizoram ], Bangladesh , Cambodia , China , Laos , Myanmar , Thailand and Vietnam ; 1000–1500 m . Notes:—Sweet’s name Jambosa macrocarpa is a nomen nudum cross-referenced to Eugenia macrocarpa , also a nomen nudum, listed in Roxburgh’s Hortus Bengalensis from 1814. Jambosa macrocarpa Miquel is treated as a new name based on the type of Roxburgh’s validly published but illegitimate name and priority for this name dates from 1855 ( McNeill et al . 2012 , Article 58.1—Ex. 1). Miquel’s is the earliest legitimate name amongst the homotypic synonyms. Syzygium macrocarpum was published as (Roxb.) Bahadur & R.C.Gaur, which is correctible to (Miq.) Bahadur & R.C.Gaur under Article 41.4 ( McNeill et al . 2012 ). Jambosa coarctata Blume is the earliest available epithet for this species, predating the name by Miquel (1855) . The diagnostic characters for S. megacarpum (Craib) Rathakrishnan & N. C. Nair are shortly petiolate but long leaves (generally> 22 cm long) with (usually) a cordate base, and an acute or acuminate apex. We believe that the type and protologue of Jambosa coarctata are representative of the taxon presently known as Syzygium megacarpum , hence we propose the new combination Syzygium coarctatum .