Two Dioscorea rust fungi found in Thailand

Abstract

Goplana dioscoreae and Phakopsora dioscoreae were found in Thailand. Goplana dioscoreae occurs on Dioscorea bulbifera at Doi Suthep, Chaing Mai Prov., D. wallichii at Takua Pa, Phang Nga Prov., and unidentified Dioscorea plants at Doi Suthep, Chiang Mai Prov. and Thap Satae, Prachuap Khiri Khan Prov. Phakopsora dioscoreae occurs on D. aff. alata, D. bulbifera, and unidentified Dioscorea plants at Doi Suthep, Chiang Mai Prov. Phakopsora dioscoreae was known only from the type material collected in Myanmar in 1972.