Cantharellus quercophilus. is described and illustrated from a post-oak savannah in Texas, USA. Morphological differences with other, small yellowish brown American Cantharellus species are discussed, mainly C.tabernensis, C.appalachiensis, C.septentrionalis and C.minor. The type specimens for all these Cantharellus have been reexamined to verify the currently applied species concepts. Some of the examined types of Cantharellus clearly belong in the Craterellus tubaeformis species complex and these are here transferred to the latter genus: Craterellus convolvulatus (A.H.Sm.) Eyssart. & Buyck comb. nov., Craterellus flavobrunneus (R.H.Petersen) Eyssart. & Buyck comb. nov., Craterellus pallidipes (R.H.Petersen) Eyssart. & Buyck comb. nov., Craterellus sphaerosporus (R.H.Petersen) Eyssart. & Buyck comb. nov., Craterellus subperforatus (A.H.Sm.) Eyssart. & Buyck comb nov. are introduced