O genero Eupatorium s.l. (Compositae - Eupatorieae) no Estado de São Paulo - Brasil

Abstract

Resumo: Esta tese consiste no estudo taxonômico das espécies de Eupatorium s.l. que ocorrem no Estado de São Paulo - Brasil. Foram empregadas micro e macrocaracteristicas, analisadas sob microscópio eletrônico de varredura (J

Abstract: This thesis eonsists of a taxonomic study of the speeies of Eupatorium s.l. that oceur in the State of São Paulo, Brazil. Using both micro- and macro-eharaeters, studied with both seanning eleetron microscopy (MEV) and light microscopy (ML), a total of 90 species, from 26 segregate genera of Eupatorium s.l., were recognized: AustrocrÍtonia RM. King & H. Robins. (2 spp.); Austroeupatorium R.M. King & H. Robins. (4 spp.); Ayapana Spaeh (1 sp.); Barrosoa R.M. IGng & H. Robins. (3 spp.); Campovassouria R.M. King & H. Robins. (1 sp.); Campuloclinium (De.) Benth. ex Baker (8 spp.); Chromolaena De. (24 spp.); . Critonia P. Brown (1 sp.); Dasycondylus RM. King & H. Robins. (2 spp.); Disynaphia Hook. & Arn. ex De. (1 sp.); Fleischmannia Seh. Bip. (2 spp.); GrazjeUa R.M. King & H. Robins. (6 spp.); Gyptis (Cass.) Casso (3 spp.); Hatschbachiella RM. King & H. Robins. (1 sp.); Hebeclinium De. (1 sp.); Heterocondylus RM. King & H. Robins. (6 spp.); Idiothamnus R.M. King & H. Robins. (1 sp.); Kaunia (1 sp.); Koanophyllon Arruda da Camara (4 spp.); Neocabreria RM. King & H. Robins. (1 sp.); Praxelis Casso (7 spp.); Raulinoreitzia RM. King & H. Robins. (2 spp.); Steyermarkína RM. King & H. Robins. (2 spp.); Stomatanthes H. Robins. (4 spp.); Urolepis (DC.) R.M. King & H. Robins. (lsp.); VÜtetia RM. King & H. Robins. Three new synonyms were established: Campuloclinium eiteniorum RM. King & H. Robins. to C. chlorolepis (Baker) RM. King & H. Robins., Heterocondylus pandurifolius (Baker) RM. King & H. Robins. to H. amphidictyus (DC.) R.M. King & H. Robins. and Eupatorium subglabratum (Hieron.) Cabrera & Klein to Praxelis sanctopaulensis (B.L. Robins.) R.M. King & H. Robins. Two new eombinations are made: Praxelis decumbens (Gardn.) RL. Esteves and Chromo/aena velutina (De.) RL. Esteves. Three new species were also recognized, in Chromolaena, Heterocondylus and Praxelis, whieh wiIl be published shortly. This study provides descriptions, illustrations, identification keys, geographic distribution and habitat data for alI taxa