(2000) "Two New Species in Oritrophium and Floscaldasia (Asteraceae: Astereae) from the High Andes of Ecuador" (Abstract Novon 10 (2): 144-148.
(2000) "Two New Species in Oritrophium và Floscaldasia (Asteraceae: Astereae) from the High Andes of Ecuador" (Abstract Novon 10 (2): 144-148.