~ gathering this author’s shelf ~
30 bookswriting since 188199 years at work
An Illustrated Flora of the Northern United States, Canada and the British Possessions from Newfoundland to the Parallel of the Southern Boundary of Virginia and from the Atlantic Ocean Westward to the 102d Meridian.
1980
Illustrated Flora of the Northern United States and
1975
An illustrated flora of the northern United States and Canada
1970
The Cactaceae; Descriptions and Illustrations of Plants of the Cactus Family
1963
The new Britton and Brown illustrated flora of the Northeastern United States and adjacent Canada
1952
Botany of Porto Rico and the Virgin Islands
1924
Neoabbottia, a New Cactus Genus from Hispaniola
1921
Descriptions of Cuban Plants New to Science.
1920
The Bahama flora
1920
The Cactaceae
1919
Flora of Bermuda.
1918
The flora of the American Virgin Islands
1918