The paper supplements a revision of the New World species of Boehmeria and Pouzozia published by the authors in 1996. Pouzolzia amambaiensis sp. nov. is described from recent material from Paraguay near the border with Brazil and represents a new generic record for Paraguay. Also recorded is a number of extensions of geographical ranges and the range of variation of Pouzolzia guatemalana, P. occidentalis, P. laevis, P. zeylanica, Boehmeria burgeriana and B. bullata subsp. coriacea.