Monographiae phanerogamarum

A flora of northwest America

Howell, Thomas

1897

The biology of flowering plants

Macgregor Skene

1924

Phanerogams

A. R. A. Gorts-van Rijnm

1997

The families of flowering plants

J. Hutchinson

1926

Catalogue of the phænogamous plants of the United States, east of the Mississippi, and of the vascular cryptogamous plants of North America, north of Mexico

Mann, Horace

1868

The families of flowering plants

John Hutchinson

1926

Spermatophytes, mostly Peruvian

J. Francis Macbride

1929

Plant breeding systems

A. J. Richards

1986