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

Author(s)

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

Affiliation

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

• Document type: Journal article
• Source: PHYTOTAXA; v. 238, n. 1, p. 82-91, DEC 9 2015.
• Web of Science Citations: 0

Abstract

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)

• FAPESP's process: 14/01851-7 - Floristic composition of campo sujo and diversity of the herbaceous-subshrub layer in burned areas and protected areas, in Jalapão region
• Grantee: Guilherme de Medeiros Antar
• Support Opportunities: Scholarships in Brazil - Master