-
The Identity of the Malpighiaceous Narcotics of South America
Vol 18, Iss 1, Page 1, Date 1957-06-07
-
The Effects of Certain Genes on the Outer Pistillate Glume of Maize
Vol 18, Iss 2, Page 57, Date 1957-06-26
-
Orchidaceae Neotropicales IV: Notes on the genus Caularthron Raf.
Vol 18, Iss 3, Page 77, Date 1958-01-27
-
Studies in American Orchids III: A New Genus from the Colombian Amazonia
Vol 18, Iss 3, Page 103, Date 1958-01-27
-
A New Lepanthopsis from Venezuela
Vol 18, Iss 3, Page 109, Date 1958-01-27
-
Plantae Austro-Americanae X: Americae Australis Plantae Novae Vel Alia Ratione Significantes
Vol 18, Iss 4, Page 113, Date 1958-04-04
-
How Absurd Can A Nomenclatural Proposal Be?
Vol 18, Iss 5, Page 181, Date 1958-11-20
-
Studies in American Orchids IV
Vol 18, Iss 5, Page 186, Date 1958-11-20
-
Two Additions To the Orchid Flora of Venezuela
Vol 18, Iss 5, Page 219, Date 1958-11-20
-
A Little-Known Cultivated Plant from Northern South America
Vol 18, Iss 5, Page 229, Date 1958-11-20
-
New Considerations in an Old Genus: Datura
Vol 18, Iss 6, Page 245, Date 1959-01-16
-
The Present Distribution of Narcotics and Stimulants amongst the Indian Tribes of Colombia
Vol 18, Iss 6, Page 273, Date 1959-01-16
-
Plantae Colombianae XV: Plantae Novae Colombianae Orientalis Descriptiones
Vol 18, Iss 6, Page 305, Date 1959-01-16
-
On the Validity of the Generic Name Cochleanthes Raf
Vol 18, Iss 6, Page 321, Date 1959-01-16
-
The Origin of Corn: I. Pod Corn, the Ancestral Form
Vol 18, Iss 7, Page 329, Date 1959-02-20
-
The Origin of Corn: II. Teosinte, a Hybrid of Corn and Tripsacum
Vol 18, Iss 8, Page 357, Date 1959-03-10
-
The Origin of Corn: III. Modern Races, the Product of Teosinte Introgression
Vol 18, Iss 9, Page 389, Date 1959-04-03
-
The Origin of Corn: IV. Place and Time of Origin
Vol 18, Iss 10, Page 413, Date 1959-04-17
-
The Origin of Corn: V. a Critique of Current Theories
Vol 18, Iss 10, Page 428, Date 1959-04-17