Joseph Andorfer Ewan
1909
The perennial southwestern Datura and the validity of Matthew's hypothesis in plant geography
Introduction to the facsimile reprint of Frederick Pursh's Flora Americae Septentrionalis, 1814 (Historiae naturalis classica tomus civ)
John Banister and his natural history of Virginia, 1678-1692
John Banister and his natural history of Virginia, 1678-1692 [by] Joseph and Nesta Ewan
Rocky Mountain naturalists
William Lobb, plant hunter for Veitch and messenger of the big tree
A revision of Macrocarpaea
A short history of botany in the United States
A short history of botany in the United States
Biographical dictionary of Rocky Mountain naturalists
How many botany books did Thomas Jefferson own?
Synopsis of the South American species of Vismia (Guttiferae)