| Phylogeny of North American Tolypella (Charophyceae, Charophyta) based on plastid DNA sequences with a description of Tolypella ramosissima sp. nov. W Pérez, JD Hall, RM McCourt, KG Karol, M Vis Journal of phycology 50 (5), 2014 | 48 | 2014 |
| Phylogenetic congruence of ribosomal operon and plastid gene sequences for the Characeae with an emphasis on Tolypella (Characeae, Charophyceae) W Pérez, MT Casanova, JD Hall, RM McCourt, KG Karol Phycologia 56 (2), 230-237, 2017 | 13 | 2017 |
| Oospore dimensions and morphology in North American Tolypella (Charophyceae, Charophyta) W Pérez, JD Hall, RM McCourt, KG Karol Journal of phycology 51 (2), 310-320, 2015 | 9 | 2015 |
| A systematic revision of North American Tolypella A. Braun (charophyceae, charophyta) W Perez City University of New York, 2014 | 2 | 2014 |
| GRATOL-RIGHT: PROGRESS AND CHALLENGES IN CHAROPHYTIC GREEN ALGAE KG Karol, JD Hall, W Perez, CF Delwiche, RM McCourt Phycologia 56 (4), 92, 2017 | | 2017 |
| ANALYSES OF THE MITOCHONDRIAL AND PLASTID GENOMES IN TOLYPELLA A. BRAUN (CHARACEAE, CHAROPHYCEAE) W Perez, RM McCourt, KG Karol JOURNAL OF PHYCOLOGY 48, S40-S40, 2012 | | 2012 |
| ANALYSES OF THE MITOCHONDRIAL AND PLASTID GENOMES IN TOLYPELLA A. BRAUN (CHARACEAE, CHAROPHYCEAE) W Perez, RM McCourt, KG Karol JOURNAL OF PHYCOLOGY 48, S40-S40, 2012 | | 2012 |
| A SYSTEMATIC STUDY OF TOLYPELLA A. BR.(CHARALES, CHAROPHYTA): RECENT ANALYSES BASED ON PLASTID SEQUENCE DATA W Perez, RM McCourt, MT Casanova, KG Karol JOURNAL OF PHYCOLOGY 47, S30-S30, 2011 | | 2011 |
| PHYLOGENY OF THE CHAREAE (CHAROPHYTA) BASED ON ANALYSIS OF TWO PLASTID GENES (ATPB, RBCL) AND IMPLICATIONS FOR CONVENTIONAL TAXONOMY RM McCourt, MT Casanova, W Perez, VW Proctor, KG Karol JOURNAL OF PHYCOLOGY 47, 18-18, 2011 | | 2011 |
| A SYSTEMATIC INVESTIGATION OF NITELLEAE (CHARALES, CHAROPHYTA) AND IMPLICATIONS FOR CONVENTIONAL TAXONOMY KG Karol, MT Casanova, JD Hall, W Perez, VW Proctor, RM McCourt JOURNAL OF PHYCOLOGY 47, 17-17, 2011 | | 2011 |
| A SYSTEMATIC REVISION OF TOLYPELLA A. BR.(CHARALES, CHAROPHYTA): PRELIMINARY INVESTIGATIONS W Perez, KG Karol JOURNAL OF PHYCOLOGY 47, 46-46, 2011 | | 2011 |
| PHYLOGENY OF THE CHARACEAE (CHAROPHYTA) BASED ON CHLOROPLAST SEQUENCE DATA KG Karol, MT Casanova, W Perez, VW Proctor, RM McCourt JOURNAL OF PHYCOLOGY 45, 15-15, 2009 | | 2009 |
