A new species and variety of Senecio [Asteraceae] from Patagonian Argentina

Two novelties in the genus Senecio L. sect. Senecio of Patagonia [Argentina] are described and illustrated: a new species, S. breviramulus Tortosa and Adr. Bartoli belonging to series Xerosenecio [Cabrera] Cabrera and S. E. Freire, and the new variety pinohachense Tortosa and Adr. Bartoli for S. volckmannii Phil. belonging to series Suffruticosi Cabrera subser. Candidi [Cabrera] Cabrera and S. E. Freire. The new species is allied to S. covasii Cabrera and S. pumilus Tortosa and Adr. Bartoli, from which it differs by the smaller, narrowly elliptic leaves and narrower heads with fewer flowers. The new variety of S. volckmannii differs from the typical variety by the presence of female ray florets and the pedunculate capitula.

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Bibliographic Details
Main Authors: Tortosa, Roberto Daniel, Bartoli, Adriana
Format: Texto biblioteca
Language:eng
Subjects:ARGENTINA, ASTERACEAE, IUCN RED LIST, PATAGONIA, SENECIO, CABRERA,
Online Access:http://ceiba.agro.uba.ar/cgi-bin/koha/opac-detail.pl?biblionumber=46665
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Description
Summary:Two novelties in the genus Senecio L. sect. Senecio of Patagonia [Argentina] are described and illustrated: a new species, S. breviramulus Tortosa and Adr. Bartoli belonging to series Xerosenecio [Cabrera] Cabrera and S. E. Freire, and the new variety pinohachense Tortosa and Adr. Bartoli for S. volckmannii Phil. belonging to series Suffruticosi Cabrera subser. Candidi [Cabrera] Cabrera and S. E. Freire. The new species is allied to S. covasii Cabrera and S. pumilus Tortosa and Adr. Bartoli, from which it differs by the smaller, narrowly elliptic leaves and narrower heads with fewer flowers. The new variety of S. volckmannii differs from the typical variety by the presence of female ray florets and the pedunculate capitula.