1. Programa de Pós-graduação em Biologia Vegetal, Univ. Federal de Minas Gerais - UFMG, Campus Pampulha; Cep 31270-090 Belo Horizonte Brazil
2. Royal Botanic Garden Edinburgh; 20a Inverleith row EH3 5LR Edinburgh UK
3. School of GeoSciences, Univ. of Edinburgh; 201 Crew Builing, King's Buildings EH9 3JN Edinburgh UK
4. Inst. Prístino; Rua Santa Maria Goretti, 86 Cep 30642-020 Belo Horizonte Brazil
5. Royal Botanic Gardens; Kew TW9 3AB UK