Apium sellowianum Wolff (1927: 30)

Calviño, Carolina Isabel & Martínez, Susana Graciela, 2018, Typification of plant names belonging to subfamily Apioideae (Apiaceae) for the Flora of Argentina, Phytotaxa 379 (2), pp. 153-161 : 154

4. Apium sellowianum Wolff (1927: 30) .

Lectotype (first step, designated by Mathias, Constance & Araujo 1972: 70)— PARAGUAY, Guarapí. Balansa 3161.

Lectotype (second step, designated here):— PARAGUAY, Guarapí , January1880, Balansa3161 (P00834720!; isolectotypes BM000504127, L2580915!, P00834721!)

Notes:—In the protologue of Apium sellowianum, Wolff (1927) cites a large list of specimens that constitute syntypes because he did not designate a holotype. From this list, Mathias et al. (1972), selected the gathering Balansa 3161 to lectotype the name. However, because there are several duplicates of this collection housed at different herbaria (BM, C, CORD, L, P, and also G and K according to Mathias et al. 1972), a second step of lectotypification is required (Art. 9.17, ICN; McNeill et al. 2012). We designate as lectotype the specimen Balansa 3161 P00834720, because it is a complete specimen with diagnostic leaves. The gathering from the same locality Balansa 3161bis is from November 1879 and therefore constitutes a different collection (BM000504126, C10008335, L (U.1083413), P00834722, P00834723).

5. Caldasia chaerophylloides Lagasca (1821: 99) ≡ Caldasia chaerophyllaea var. glabriuscula Candolle (1830: 229) . Lectotype (designated here):— PERU. Ruiz & Pavón s.n. (MA814138!).

= Chaerophyllum andicola ( Kunth 1821: 13) Chung (2007: 677) .

Notes:—The protologue of Caldasia chaerophylloides Lagasca (1821: 99) indicates that the species occurs in Havanna and Peru. We designate as lectotype the original material found at MA because it coincides with the protologue and is well preserved. Candolle (1830) describes var. glabriuscula based on the material we selected as the lectotype of Caldasia chaerophylloides Lag. , therefore this variety automatically becomes a homotypic synonym.