Senecio involucratus (Kunth) Candolle (1838: 422)

Calvo, Joel & Freire, Efraín, 2016, A nomenclator of Senecio group Lasiocephalus (Compositae, Senecioneae): nomenclatural and taxonomic notes and new typifications, Phytotaxa 260 (2), pp. 116-130 : 121

7. Senecio involucratus (Kunth) Candolle (1838: 422) . Cacalia involucrata Kunth in Humboldt et al. (1818: 130). Aetheolaena involucrata (Kunth) Nordenstam (1978: 54) . Lasiocephalus involucratus (Kunth) Cuatrecasas (1978: 310) . Type:—“Crescit cum praecedente?” [from indicatio locotypica], F.W.H.A. Humboldt & A.J.A. Bonpland s.n. (lectotype: P-00320229 digital image!, designated as “ holotype ” by Nordenstam (1999a: 263)

Culcitium denticulatum Turczaninow (1851a: 205) . Type:— ECUADOR. Pichincha, Andes of Quito , W. Jameson 764 (lectotype: KW-001001521 digital image!, designated here; isolectotypes: K-000497738 digital image!).

Senecio caldasensis Cuatrecasas (1944: 28) . Aetheolaena caldasensis (Cuatrecasas) Nordenstam (1978: 54) . Lasiocephalus caldasensis (Cuatrecasas) Cuatrecasas (1978: 309) . Type:— COLOMBIA. Caldas, Cordillera Central, vertiente occidental, La Virginia, sobre La Esperanza, 6 May 1940, J. Cuatrecasas 9346-b (holotype: COL-000005382 [left-hand plant] digital image!; isotypes: F-0076869F digital image!, NY-00259134 digital image!, US-00123267 digital image!).

Nomenclatural notes: —Concerning the typification of Cacalia involucrata Kunth in Humboldt et al. (1818: 130), it should be noted that another specimen belonging to the material collected by Humboldt and Bonpland was kept at B, but it was apparently destroyed in 1943. A picture of it is currently available at F (F-0BN015618). Since it cannot be proved that the specimen at P was the only element used to describe this species, we correct the use of the term holotype to lectotype (see Art. 9.1 Note 1 and Art. 9.9).

In the protologue of the name S. caldasensis Cuatrecasas (1944: 28) , the author referred to a single collection from COL as the “typus” of the name. Since there is one single specimen of this collection at COL, it should be accepted as the holotype (Art. 9.1 Note 1). The plant on the right-hand is excluded because it corresponds to another species.

Distribution: — Colombia, Ecuador, Peru.