XVI International Botanical Congess
The geographic ranges of species of Thelephora Ehrh,: Fr. (Basidiomycetes, Aphyllophorales, Thelephoraceae) in Illinois are not well documented in the literature. The data were obtained from a literature search, study of personal collections, and examination of over 70 specimens of Thelephora housed in several herbaria in Illinois. A working key for species present in Illinois was developed Thelephora antrocephala Fr., T albidiobrunnea Schw., T. fimbriata Schw., T. palmata Scop.: Fr., T. multipartita Schw., T. terrestris Ehrh.: Fr. And T. vialis Schw. occur throughout the state . Thelephora caryophyllea Fr., and T. regularis Ehrh,: Fr. Are currently known from central to southern Illinois. Thelephora intybacea Pers.: Fr. And T. cuticularis Berk. Appear restricted to the southern counties. Although previously implied from Illinois by some literature, this report of T. cuticularis Berk. And T. intybacea pers,: Fr. is documented by voucher specimens.