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 48. Croton droguetioides Kainul. & Radcl.-Sm., Candollea 71: 331. 2016 [23 Nov 2016] Croton droguetioides Radcl.-Sm., Gen. Croton Madag. Comoro 16. 2016 [23 Dec 2016]. Type. Madagascar. Prov. Toamasina: marais et bordures de Torotorofotsy, 18°52'S , 48°20'E , 24 Feb 1997, P. Rakotomalaza et al. 1170 (holotype: K!; isotype: MO!), nom. illeg. Croton alaotrensis Radcl.-Sm., Gen. Croton Madag. Comoro 10. 2016, syn. nov. Type. Madagascar. "Central Madagascar", received Dec 1883, R. Baron 3006 (holotype: K!, isotype: P [P00131488]!). Croton parietarioides Radcl .-Sm., Gen. Croton Madag. Comoro 16. 2016, syn. nov. Type. Madagascar. Prov. Toamasina: Ambatoharanana, pres Antsevabe, 1000 m, 6 Mar 1951, G. Cours 4111 (holotype: K!; isotype: P [P00418635]!). Type . Madagascar . Prov. Toamasina : Alaotra-Mangoro Region , Moramanga District , Andasibe , Berano , Ambatovy mine concession, 18°47'59"S , 48°20'31"E , 1009 m , 22 Mar 2016 , B. van Ee , P. Antilahimena , K. Kainulainen & P.E. Berry 2447 ( holotype : MICH [MICH1513195]!, isotypes: MO!, P!, TAN!) . Habit and distribution. Shrubs; eastern montane Madagascar (Toamasina). Notes. Radcliffe-Smith (2016) erroneously placed the type of Croton parietarioides in Antananarivo Province, mistaking Antsevabe for Antsirabe. Antsevabe is close to the Ankeniheny-Zahamena eastern montane forest corridor and lies ca. 25 km southeast of Ambatondrazaka.