Jambosa macrocarpa Sweet (1830: 212) Eugenia macrocarpa Roxburgh (1832: 497) 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) Eugenia latilimba Merrill (1934: 64) Syzygium latilimbum (Merr.) Merrill & L.M. Perry (1938: 216) Typifications and nomenclatural notes on Indian Myrtaceae Byng, James W. Wilson, Peter G. Snow, Neil Phytotaxa 2015 2015-06-23 217 2 101 116   12.  Syzygium coarctatum(Blume) Byng, N. Snow & Peter G.Wilson,  comb. nov. Basionym:—  Jambosa coarctata Blume (1850: 99)[  Jambosa coarctataBlumeMuseum botanicum Lugduno-Batavum 1: 99 (1850)]. Type: sine loc., Blumes.n. ( holotypeL!).   =   Jambosa macrocarpa Sweet (1830: 212), nom. nud. =   Eugenia macrocarpa Roxburgh (1832: 497), nom. illeg., non Schlechtendal & Chamisso 1830. =   Jambosa macrocarpa Miquel (1855: 417). =  Eugenia megacarpaCraib (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, Roxburghs.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,  McClure20098( holotypePNH†; isotypesA, BM!, K! [barcode K000793866], P!).  Distribution:— India[ Assam, Meghalaya, Mizoram], Bangladesh, Cambodia, China, Laos, Myanmar, Thailandand Vietnam; 1000–1500 m. Notes:—Sweet’s name  Jambosa macrocarpais a nomen nudum cross-referenced to  Eugenia macrocarpa, also a nomen nudum, listed in Roxburgh’s Hortus Bengalensis from 1814.  Jambosa macrocarpaMiquelis treated as a new name based on the typeof 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 macrocarpumwas 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 coarctataBlumeis the earliest available epithet for this species, predating the name by Miquel (1855). The diagnostic characters for  S. megacarpum(Craib) Rathakrishnan & N. C. Nairare shortly petiolate but long leaves (generally> 22 cmlong) with (usually) a cordate base, and an acute or acuminate apex. We believe that the typeand protologue of  Jambosa coarctataare representative of the taxon presently known as  Syzygium megacarpum, hence we propose the new combination  Syzygium coarctatum. [329,507,1782,1803] 1932-05-04 1932-05-20 1932-05-04 K China Type Fan Maan Ts'uen Chim Shan 4 105 K000793866 2 Hainan holotype