A Nomenclator of Croton (Euphorbiaceae) in Madagascar, the Comoros Archipelago, and the Mascarene Islands Author Berry, Paul E. Herbarium, Department of Ecology and Evolutionary Biology, University of Michigan, 3600 Varsity Drive, Ann Arbor, Michigan 48108, U. S. A. peberry@umich.edu Author Kainulainen, Kent Herbarium, Department of Ecology and Evolutionary Biology, University of Michigan, 3600 Varsity Drive, Ann Arbor, Michigan 48108, U. S. A. Author Ee, Benjamin W. van Department of Biology, Universidad de Puerto Rico, Recinto Universitario de Mayagueez, Mayagueez, PR 00680, Puerto Rico, U. S. A. text PhytoKeys 2017 2017-11-15 90 1 87 http://dx.doi.org/10.3897/phytokeys.90.20586 journal article http://dx.doi.org/10.3897/phytokeys.90.20586 1314-2003-90-1 80067D29FFFB7D34FF80E95D553F4254 1138341 69 . Croton humblotii Baill., Bull. Mens. Soc. Linn. Paris 2: 846. 1890 Croton humblotii var. anjuanensis Leandri, Ann. Mus. Colon. Marseille, ser . 5, 7(1): 44. 1939, syn. nov. Type. Union of the Comoros: Anjouan, Apr 1905, Lavanchie s.n. (holotype: P [P00154408]!). Type . Mayotte [French Overseas Department]: foret de Combani , 10 Oct 1884 , L. Humblot 1298 ( lectotype , designated here: P [P00196068]!; isolectotypes: K [K000347496]!, K [K001040343]!, LD [LD1210694], LD [LD1210214], LG [LG000009002795]), P [P00196069], P [P00196070] . Habit and distribution. Shrubs or trees; Comoro Islands, occurring on Mayotte and the three islands of the Union of the Comoros (Anjouan, Grande Comore, and Moheli ).