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Barkley, Fred

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Acer pensylvanicum L.

Eugene Courtney and Fred A. Barkley
Larix laricina (Du Roi) K. Koch

Eugene Courtney and Fred A. Barkley
Acer saccharum Marshall

Eugene C. Courtney and Fred A. Barkley
Verbena L.

Barkley A. Fred and Glafiro Alanis
Lippia lycioides Steud.

Jorge S. Marroquin de la Fuente and Fred A. Barkley
Viola septentrionalis Greene

Fred A. Barkely and Stanley C. Roberts
Clintonia borealis (Aiton) Raf.

Fred Barkley and Stanley C. Roberts
Acer pseudoplatanus L.

Kalil Boghdan and Fred A. Barkley
Pinus serotina Michx.

Kalil Boghdan and Fred A. Barkley
Eugenia jambos Blanco

Fred A. Barkley
Phoradendron wattii Krug & Urb.

Fred A. Barkely
Pseudolycopodiella caroliniana (L.) Holub

F. A. Barkley and G. R. Proctor
Eugenia wilsonella Fawc. & Rendle

Fred A. Barkley and George R. Proctor
Aphelandra runcinata Klotzsch in DC. ex Nees

Fred Barkley and Ovidio Arboldea
Centropogon cornutus Druce

Fred Barkley and Ovidio Arboldea
Palicourea

Fred Barkley and Ovidio Arboldea
Dorstenia jamaicensis Britton

Fred A. Barkley and Arther W. Sutton
Chrysophyllum cainito L.

Fred A. Barkley and Grady L. Webster
Centropogon

Fred Barkley and Gabriel Gutiérrez V.
Palicourea crocea (Sw.) Schult.

Fred Barkley and Gabriel Gutiérrez V.
Borreria laevis Griseb.

Fred Barkley and George R. Proctor
Sauvagesia erecta L.

Fred Barkley and George R. Proctor
Saurauia scabrida Hemsl.

Fred Barkley and Jorge Hernan Torres-Romero
Orthrosanthus chimboracensis (Kunth) Baker

Fred Barkley and Marceliano Valderama
Asparagus sprengeri Regel

Fred Barkley and Grady Webster