Gymnosporangium minus n. sp. occurs on Cupressus sempervirens L. near Athens, Greece, and is the only species on a non-juniperus telial host in Europe. G. guatemalianum n. sp. was found on Amelanchier nervosa (Dcne.) Standl. and G. meridissimum n. sp. on Cupressus benthami Endl. in Guatemala; they are the most southerly species of the genus and may be genetically related.