2001

Rowe, D. L., M. T. Murphy, R. C. Fleischer, and P. G. Wolf. 2001. High frequency of extra-pair paternity in Eastern Kingbirds. Condor 103: 845-851.

Sipes, S. D. and P. G. Wolf. 2001. Phylogenetic relationships within Diadasia, a group of specialist bees. Molecular Phylogenetics and Evolution 19: 144-156.

Smith, A. R., H. Tuomisto, K. M. Pryer, J. S. Hunt, P. G. Wolf. 2001. Metaxya lanosa, a second species in the genus and fern family Metaxyaceae. Systematic Botany 26: 480-486.

Archibald J.K., P.G. Wolf, V. J. Tepedino, and J. Bair. 2001. Genetic relationships and population structure of the endangered steamboat buckwheat, Eriogonum ovalifolium var. williamsiae (Polygonaceae). American Journal of Botany 88: 608-615.

Wolf, P. G., D. R. Campbell, N. M. Waser, *S. D. Sipes, T. R. Toler, and &J. K. Archibald. 2001. Tests of pre-and post-pollination barriers to hybridization between sympatric species of Ipomopsis (Polemoniaceae). American Journal of Botany 88: 213-219.

Wolf, P. G., H. Schneider, and T. A. Ranker. 2001. Geographic distributions of homosporous fern taxa: does dispersal obscure evidence of vicariance? Journal of Biogeography 28: 263-270.

Pryer, K. M., H. Schneider, A. R. Smith, R. Cranfill, P. G. Wolf, J. S. Hunt, and S. D. Sipes. 2001. Horsetails and ferns are a monophyletic group and the closest relatives to seed plants. Nature 409: 618-622.