Plant Lists and Correspondence, 1949-1971Fred A. (Fred Alexander) 1908 Barkley · First published 2021Open the Tome
Schinus meyeri, una nueva especie de AnacardiaceasFred Alexander Barkley · First published 1973Open the Tome
A list of the orders and families of flowering plantsFred Alexander Barkley · First published 1971Open the Tome
An arrangement and index for the filing of microscope slides, fossils and herbarium material of the kingdom metaphytaFred Alexander Barkley · First published 1971Open the Tome
An arrangement and index for the filing of microscope slides, fossils and herbarium material of the kingdom metaphyta ; 'Gymnospermae'Fred Alexander Barkley · First published 1971Open the Tome
A criticism of the traditional concept of the genus RhusFred Alexander Barkley · First published 1965Open the Tome
A list of the orders and families of Anthophyta (Angiospermae) with generic examplesFred Alexander Barkley · First published 1965Open the Tome
Some remarks concerning Copeland's "Classification of Lower Organisms"Fred Alexander Barkley · First published 1965Open the Tome
