Contribution to the Vernonieae (Asteraceae) of the Cerrado: a transfer to Lessingianthus, in a new rank and with a new name

Autor(es)

Antar, Guilherme Medeiros ^[1] ; Loeuille, Benoit ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Biociencias, Dept Bot, BR-05508090 Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: PHYTOTAXA; v. 238, n. 1, p. 82-91, DEC 9 2015.
• Citações Web of Science: 0

Resumo

Vernonia monocephala subsp. irwinii is a member of the genus Lessingianthus and is hereby transferred to that genus with a new status and a new name, L. semirii. It differs from L. monocephalus by its subsessile to petiolate (vs. sessile) leaves, largely attenuate (vs. rounded to attenuate) leaf bases, adaxial leaf surfaces drying black (vs. greenish), tomentose to velutinous (vs. villous) abaxial leaf surface and stem indument, and number of florets per head (up to 120 vs. up to 210). Both species are native to provinces of the Cerrado Domain, but they do not occur sympatrically: L. semirii is restricted to the North-eastern floristic province (Bahia, Maranhao, Tocantins and Para states) and northern portion of the Central-western floristic province (Mato Grosso state), whereas L. monocephalus occurs in Distrito Federal and Goias states in the Central-western, Central and South-eastern floristic provinces. Lessingianthus semirii is hereby described and illustrated for the first time; a distribution map is provided and affinities of this species are discussed. (AU)

• Processo FAPESP: 14/01851-7 - Composição florística de campo sujo e diversidade do estrato herbáceo-subarbustivo em áreas sujeitas à ação do fogo e áreas protegidas na região do Jalapão, TO
• Beneficiário: Guilherme de Medeiros Antar
• Modalidade de apoio: Bolsas no Brasil - Mestrado