Uredo maua , sp. nov., and Uromyces tairae : Additions to the rust flora of Hawai’i

Abstract

Uredo maua , on Xylosma hawaiiense (Flacourtiaceae), an endemic tree of Hawaiian forests, is newly described as an addition to Hawai’i's native rust flora. Uredo wakensis , originally described from Wake Island and reported from other Pacific islands on Tournefortia argentea (Boraginaceae), represents the uredinial state of Uromyces tairae , described from Okinawa. This rust is newly reported from Hawai’i.