On the original material of two austral American Senecio species (Compositae) collected during British naval expeditions in 1828, now located in the herbarium of Geneva

Calvo, J. (2021). On the original material of two austral American Senecio species (Compositae) collected during British naval expeditions in 1828, now located in the herbarium of Geneva. Candollea 76: 261-267. In English, English abstract. The location of the original material of the austral American species Senecio bipinnatifidus Hook. & Arn. and Senecio websteri Hook. f. has been unknown for decades. In the course of curation labours in G, such material originating from Delessert's herbarium has been located. The name Senecio bipinnatifidus was described from Coquimbo (Chile) based on material collected in 1828 during the Captain Beechey's Expedition; the specimen found in G is designated as the lectotype of this name and the currently accepted Senecio elquiensis Cabrera placed under synonymy. The description of Senecio websteri was based on material collected in 1828 in Staten Island (Argentina) during the voyage to the Southern Atlantic Ocean lead by Captain Foster; the located specimen is considered here as the holotype of the name.