@inbook {5014, title = {Abrothallus}, booktitle = {Lichen Flora of the Greater Sonoran Desert Region}, volume = {2}, year = {2004}, pages = {626-630}, publisher = {T.H. Nash (Lichens Unlimited)}, organization = {T.H. Nash (Lichens Unlimited)}, address = {Tempe, Arizona}, author = {Diederich, P.} } @article {2149, title = {New species and new records of American lichenicolous fungi}, journal = {Herzogia}, volume = {16}, year = {2004}, pages = {41-90}, url = {http://nhm2.uio.no/botanisk/lav/RLL/PDF1/R24711.pdf}, author = {Diederich, P.} }