Author

John Skvarla

Oklahoma University
Norman, OK, United States of America

4 articles by this author

Research Article

Vernonieae (Asteraceae) of southern Africa: A generic disposition of the species and a study of their pollen

Harold Robinson, John Skvarla, Vicki Funk

10.3897/phytokeys.60.6734

11-02-2016

Unique: 4693 | Total: 7996

Reprint: € 22,40

49-126

Research Article

Two new genera, Hoffmannanthus and Jeffreycia, mostly from East Africa (Erlangeinae, Vernonieae, Asteraceae)

Harold Robinson, Stirling Keeley, John Skvarla, Raymund Chan

10.3897/phytokeys.39.7624

18-07-2014

Unique: 3817 | Total: 7130

Reprint: € 4,80

49-64

Research Article

Pantoporate pollen in the Asteraceae (Vernonieae)

Harold Robinson, John Skvarla

10.3897/phytokeys.38.7495

19-05-2014

Unique: 4252 | Total: 7257

Reprint: € 4,80

1-13

Research Article

Lettowia, a new genus of Vernonieae from East Africa (Asteraceae)

Harold Robinson, John Skvarla

10.3897/phytokeys.25.5556

19-07-2013

Unique: 4166 | Total: 6868

Reprint: € 2,60

47-53

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