Croton multicostatus Muell .Arg., Linnaea 34: 79 (1865)

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 : 51

96. Croton multicostatus Muell.Arg., Linnaea 34: 79 (1865)

Oxydectes multicostata ( Müll.Arg.) Kuntze, Revis. Gen. Pl. 2: 612. 1891. Type: Based on Croton multicostatus Müll.Arg.

Croton vernicosus Baker in J. Linn. Soc., Bot. 22: 519. 1887. Type. Madagascar. sin. loc., s.d., R. Baron 4935 (lectotype, designated here: K [K000347500]!, isolectotype: K [K000347498]!).

Croton sclerodorus Baill., Bull. Mens. Soc. Linn. Paris 2: 968. 1891, as ' sclerodorum '. Type. Madagascar. sin. loc., s.d., R. Baron 4735 (holotype: P [P00133318]!).

Type.

Madagascar. Prov. Toliara: Fort Dauphin , no collector indicated, (holotype: P-JU [Catalogue # 16338]!; isotype: Madagascar j. maut. No. 39, P-LA [P00382066]!) .

Habit and distribution.

Large shrubs or small trees; southeastern Madagascar (Toliara, possibly also in Fianaranstsoa).

Notes.

See Berry and Van Ee (2011) for a discussion of how Müller (1865) mistook the type locality of Croton multicostatus for the Caribbean (Hispaniola) rather than for Madagascar. In that paper, we attributed both the P-JU and P-LA sheets as being a Philibert Commerson collection, but more likely these were collected by Franz Wilhelm Sieber, who visited Madagascar between 1822 and 1825, and included them under his series "j. maut.", as indicated on the P-LA sheet.