Commelinaceae GH: 00029595 Tripogandra elata D. R. Hunt Brazil: Distrito Federal Forested slopes, rocky talus, Corrego Landim... H. S. Irwin, R. Reis dos Santos, R... 14051 1966-3-17
Iridaceae GH: 00031468 Trimezia spathata spectabilis (Ravenna) Chukr Brazil: Goiás Rocky slopes and adjacent campo, ca. 15 km. ... H. S. Irwin, R. Reis dos Santos, R... 12786 1966
GH: 00031468 Trimezia spectabilis Ravenna Brazil: Goiás Rocky slopes and adjacent campo, ca. 15 km. ... H. S. Irwin, R. Reis dos Santos, R... 12786 1966
Lentibulariaceae GH: 01976467 Utricularia erectiflora Saint-Hilaire & Girard Brazil: Mato Grosso Ca. 30 km. S. of Xavantina. H. S. Irwin, R. Reis dos Santos, R... 17005 1966-6-12
Orchidaceae AMES: 01685545 Epistephium laxiflorum Barbosa Rodrigues Brazil: Mato Grosso Serra do Roncador H. S. Irwin, R. Reis dos Santos, R... 16410 1966-6-1
Polygalaceae GH: 00025999 Polygala irwinii Wurdack Brazil: Mato Grosso Serro do Roncador: Cerrado, ca. 87 km north ... H. S. Irwin, R. Reis dos Santos, R... 16487 1966-6-2