Senecio masatierrae (Pelser)
|syn. Robinsonia macrocephala (Decaisne), Symphyochaeta macrocephala (Decaisne)|
Chile: Isla Robinsón Crusoe / Juan Fernández Islands
|size: 3 - 5 m (height)
extinction date: last seen in 1989
|The plants of this species
were small, hulking treelets measuring up to 5 m, but most reached only
some 2 m in height.
The last specimens of this species were found in the year 1989 on the cliffs near Puerto Francés, since then no trace of this species has been found again.
This species seems to have been already rare when it was first discovered and described.
The genus Robinsonia is now included in the genus Senecio, therefore several species had to be renamed with new species names.
Large-headed Robinsonia (Senecio masatierrae)
Photo from 'The Natural history of Juan Fernandez and Easter Island, edited by Carl Skottsberg. Vol. 2., Botany. Uppsala: Almqvist & Wiksells Boktryckeri, 1920-1953'
Large-headed Robinsonia (Senecio masatierrae), weibliche Einzelblüten
Depiction from 'The Natural history of Juan Fernandez and Easter Island, edited by Carl Skottsberg. Vol. 2., Botany. Uppsala: Almqvist & Wiksells Boktryckeri, 1920-1953'
- Marcia Ricci: Conservation status and ex situ cultivation efforts of endemic flora of the Juan Fernández Archipelago. Biodivers Conserv 15: 3111–3130. 2006
- Andrés Moreira-Muñoz; Mélica Muñoz-Schick: Classification, diversity, and distribution of Chilean Asteraceae: implications for biogeography and conservation. Diversity Distrib. 13: 818-828. 2007
- Pieter B. Pelser; Eric J. Tepe; Aaron H. Kennedy; Linda E. Watson: The fate of Robinsonia (Asteraceae): sunk in Senecio, but still monophyletic?. Phytotaxa 5: 31-46. 2010