a1 Royal Botanic Gardens, Kew, Richmond, Surrey TW9 3AB, UK. Corresponding author.
a2 Royal Botanic Garden Edinburgh, 20A Inverleith Row, Edinburgh EH3 5LR, UK.
Geoffroea (Leguminosae–Papilionoideae) has traditionally comprised three species. In this revision the number of species is reduced to two because G. striata (Willd.) Morong is considered indistinct from G. spinosa Jacq. and is placed in synonymy. No significant morphological variation is found between the five isolated areas of distribution of G. spinosa, which occurs in the disjunct seasonally dry tropical forests of South America, and there is certainly no basis for recognizing separate taxa.
(Received December 17 1998)
(Accepted February 24 1999)