Hybrid aspens in the lower peninsula of Michigan

TitleHybrid aspens in the lower peninsula of Michigan
Publication TypeJournal Article
Year of Publication1961
AuthorsBarnes BVerne

38 clones of the P. grandidentata x tremuloides hybrid are reported from 10 counties in the Lower Peninsula of Michigan. Although the majority of hybrids have leaf and bud characteristics intermediate between the two parents, three clones are suspected of being introgressants. The reasons for the abundance of hybrids and the greater frequency of hybrid clones in southeastern Michigan than in the northern part of the Lower Peninsula are discussed. Two clones of the P. alba x tremuloides hybrid and one clone of the P. alba x grandidentata hybrid are reported and described.