MYCOTAXON Volume 109, pp. 49–61 July–September 2009 Four new species of Punctelia from São Paulo State, Brazil Marcelo Pinto Marcelli1 & Patrícia Jungbluth2 1
[email protected] – 2
[email protected] Instituto de Botânica, Seção de Micologia e Liquenologia Caixa Postal 3005, São Paulo / SP 01061-970, Brazil John A. Elix
[email protected] Department of Chemistry, Building 33, Australian National University Canberra, A.C.T. 0200, Australia Abstract — The following new species ofPunctelia are described from remnant cerrado forests in São Paulo State, Brazil: Punctelia crispa, P. digitata, P. imbricata, and P. roseola. A key to the seven species of Punctelia found in the study area is presented. Keywords — Punctelia colombiana, Punctelia constantimontium, Punctelia fimbriata, Punctelia graminicola, Punctelia rudecta, Punctelia appalachensis Introduction The Brazilian cerrado is included in the savanna world biome. It is recognized as one of the world’s five hot spots of biodiversity and threatened vegetation (Fonseca et al. 1999). Cerrado formation is structurally and physiognomically heterogeneous, varying from grasslands (campo limpo) to arboreal structures (cerradão) (Coutinho 1978). In São Paulo State, cerrado vegetation originally occupied 20% of the territory, but at present only ca. 1% of the original area remains (Zorzetto et al. 2003). In an ongoing effort to describe and document the biodiversity of the lichenized mycota, a survey of Parmeliaceae in remnant cerradoes in inland São Paulo State was performed (Jungbluth 2006). Several new species were recognized, as expected in such a diverse biome (Jungbluth et al. 2008). Thirty species of Punctelia are known worldwide (Egan & Aptroot 2004), sixteen of which are recorded for Brazil (Marcelli 2004).