Araujia odorata (Hook. & Arn.) Fontella & Goyder, comb. nov.

Basionym: Cynanchum odoratum Hooker & Arnott (1834: 294) . Type: ARGENTINA. ‘ Old dykes near Buenos Aires’, no date, J . Tweedie s.n. (holotype K!, possible isotypes BM!, K!) .

= Morrenia intermedia Meyer (1950: 51) . Type: ARGENTINA. San Luis: Pedra Blanca, Departamento Junín, 12 February 1948, T. Meyer 13845 (lectotype (here designated) LIL-barcode LIL001169!). Synon. nov.

Note:— Goyder (2003: 716) suggested M. intermedia might be a hybrid between M. odorata and M. brachystephana, based on the comments made by Meyer (1950). However, he had at the time not seen the type. Having now examined type material at LIL, we are able to resolve the identity of this plant. There are two sheets with the number Meyer 13845 housed at LIL, one with a flowering specimen, which matches the description of M. odorata, and a fruiting specimen, which does not. We have chosen the sheet with the flowering specimen as lectotype to fix the application of this name.