Croton anosiravensis Leandri, Adansonia, n.s., 12: 69. 1972

Berry, Paul E., Kainulainen, Kent & Ee, Benjamin W. van, 2017, A Nomenclator of Croton (Euphorbiaceae) in Madagascar, the Comoros Archipelago, and the Mascarene Islands, PhytoKeys 90, pp. 1-87 : 13-14

11. Croton anosiravensis Leandri, Adansonia, n.s., 12: 69. 1972

Croton anosiravensis var. pilosus Radcl.-Sm., Gen. Croton Madag. Comoro 207. 2016, syn. nov. Type. Madagascar. Prov. Antsiranana: Analamera, 50-400 m, Jan 1938, H. Humbert 19141 (lectotype, designated here: P [P00133307]!; isolectotype: P [P00133308]!).

Type.

Madagascar. Prov. Antsiranana: Base des escarpements de l’Anosiravo, poteau kilométrique 6 de la route de Diego Suarez à Orangéa, 12 Dec 1963, Service Forestier 22930 - SF (holotype: P [P00404432]!; isotypes: K [K001040369]!, TEF [TEF000193]!) .

Habit and distribution.

Shrubs; northern Madagascar (Antsiranana).

Notes.

In its stellate-pubescent and cordate leaves, Croton anosiravensis is superficially similar to some of the species in the Adenophorus Group. However, it does not have opposite leaves or laminar glands, and is probably not closely related. It appears to be a rare species, because besides the type from the northern slopes of Montagne des Français, it is otherwise only known from Analamera (Humbert 19141 [P]) and Befarafara in Daraina (Rakotonandrasana et al. 1048 [CNARP, MICH, MO, P, TAN]). Radcliffe-Smith (2016) stated "holo: P" for var. pilosus , but there are two sheets of the type collection there, so we have selected the more complete of the sheets at P as the lectotype.