Species of flowering plant
Pitraea is a monotypic genus of flowering plants belonging to the family Verbenaceae. It only contains one known species, "Pitraea cuneato-ovata" 
Its native range is southern South America. It is found in (north-eastern and north-western) Argentina, Bolivia, Brazil, (central and northern) Chile and Peru.
The genus name of "Pitraea" is in honour of Adolf Samoilovich Pitra (1830–1889), a Russian professor of botany in Kharkiv.
The genus has 2 known synonyms; "Castelia" Cav. and "Phelloderma" Miers.
The Latin specific epithet of "cuneato-ovata" is derived from "cuneate" meaning wedge-shaped and "ovate" from "ovum" meaning. The genus was first described and published in Bull. Soc. Imp. Naturalistes Moscou Vol.35 (II) on page 328 in 1862. Then the species was published in Kurtziana Vol.1 on page 274 in 1961.
References.
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