Books by Walter H. Lewis
University and graduate educat
University and graduate education at botanical gardens
Additions to the Flora of the
Additions to the Flora of the Bahama Islands
Pollen differences between Sty
Pollen differences between Stylisma and Bonamia (Convolvulaceae)
Chromosomal drift, a new pheno
Chromosomal drift, a new phenomenon in plants
Species roses in the United St
Species roses in the United States and their relation to modern roses
The flora of Panama
The flora of Panama
Chromosomes of two Moraea (Iri
Chromosomes of two Moraea (Iridaceae) from southern Africa
Chromosome numbers of Sisyrinc
Chromosome numbers of Sisyrinchium (Iridaceae) in eastern North America
A monograph of the genus Rosa
A monograph of the genus Rosa in North America
Glossary of some biological te
Glossary of some biological terms
Revision of the genus Rosa in
Revision of the genus Rosa in Eastern North America