Catálogo de las plantas vasculares del Cono Sur : (Argentina, Sur de Brasil, Chile, Paraguay y Uruguay) - Missouri Botanical Garden. (Missouri Botanical Garden Press, 2008)

Catálogo de las plantas vasculares del Cono Sur : (Argentina, Sur de Brasil, Chile, Paraguay y Uruguay) - Missouri Botanical Garden. (Missouri Botanical Garden Press, 2008)

Index kewensis plantarum phanerogamarum nomina et synonyma omnium generum et specierum a Linnaeo usque ad annum 1885 complectens nomine recepto auctore patria unicuique plantae subjectis. Supplementum, nomina et synonyma omnium generum et specierum - Royal Botanic Gardens, Kew. (E prelo Clarendoniano, 1901)

Inward book, Singapore Botanic Gardens, 1 July 1988-30 August 1996 - Botanic Gardens (Singapore) (1988)

Phytologia - Moldenke, Harold N. (Harold Norman), 1909 -1996 (H.A. Gleason and H.N. Moldenke, 1989)

Rodriguésia: Revista do Jardim Botânico do Rio de Janeiro (Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 2008)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1955)

Smithsonian miscellaneous collections - Smithsonian Institution (Smithsonian Institution, 1955)