by Cruden, R.W
Published in Contributions from the University of Michigan Herbarium (USA) (1987)

by Cruden, R.W, Lyon, D.L
Published in Oecologia (01.05.1985)

by Douglas, K.L, Cruden, R.W
Published in American journal of botany (01.03.1994)

by Cruden, R.W. (University of Iowa, Iowa City, IA.), Lloyd, R.M
Published in American journal of botany (01.06.1995)

by Cruden, R.W
Published in Linnean Society symposium series (1976)

by Cruden, R.W
Published in Evolution (USA) (01.03.1977)

by Cruden R.W, Miller Ward S
Published in Evolution (1981)

by Cruden, R.W
Published in Ecology Durham (1974)

by Cruden, R.W
Published in Evolution (1972)

by Cruden, R.W
Published in Science (1972)

by Cruden, R.W
Published in Madrono (1972)

by Ballard, R.E, Cruden, R.W
Published in Biochemical systematics and ecology (1978)

by Cruden, R.W
Published in Brittonia (1971)

by Cruden, R.W
Published in Pan pacific Entomol (1969)

by Cruden, R.W. (University of Iowa, Iowa City, IA)
Published in Systematic botany (01.04.1991)

by Cruden, R.W, Lyon, D.L
Published in Botanical gazette (Chicago, Ill.) (01.03.1985)

by Baker, J.D. (University of Washington, Seattle, WA), Cruden, R.W
Published in American journal of botany (01.07.1991)

by Cruden, R.W
Published in American journal of botany (01.09.1973)

by Cruden, R.W, Hermanutz, L, Shuttleworth, J
Published in Oecologia (01.09.1984)

by Cruden, R.W, Toledo, V.M
Published in Plant Syst Evol (1977)