Evolvulus boninensis Maekawa & Tuyama (1938: 571–572)

Lectotype (designated here)— JAPAN: Bonin Imohtojima: 11 Jun. 1938, T. Tuyama s.n. (TI [43978]!; isolectotypes: TI [43976]!, TI [43977]! and TI [43979]!) . Paratype — JAPAN: Bonin Mukohjima: 17 Oct. 1934, M . Okabe s.n. (TI [43975]!) .

Distribution: Japan (Bonin Islands).

In the protologue of Evolvulus boninensis, Tuyama (1938b) assigned the specimen deposited in TI “Imohtozima; leg. T. Tuyama, Jul. 11, 1938 ” as the type. We could not find this, but did find four duplicate specimens collected by T. Tuyama on Imohtojima Island dated on 11 June 1938 (their labels were written in Kanji characters). Because one of these specimens was consistent with a photo in the protologue, Tuyama (1938b) must have mistaken the collection date in writing the label of the type specimens. We selected the photographed specimen as the lectotype.