TThe genus YoungiaThe genus Youngiade Ernest Brown BabcockMateriasYoungiaEdiciones (1)The genus Youngia (1937)Carnegie Institution of Washington · inglésMás obras de Ernest Brown BabcockTThe American species of CrepisThe American species of CrepisEEndemism in CrepisEndemism in CrepisGGenetics laboratory manualGenetics laboratory manual
MMeiosis in certain interspecific hybrids in Crepis and its bMeiosis in certain interspecific hybrids in Crepis and its bearing on taxonomic relationship
MMeiosis in two species and three hybrids of Crepis and its bMeiosis in two species and three hybrids of Crepis and its bearing on taxonomic relationship