| Sesquiterpenoids from Tithonia diversifolia with Potential Cancer Chemopreventive Activity JQ Gu, JJ Gills, EJ Park, E Mata-Greenwood, ME Hawthorne, F Axelrod, ... Journal of natural products 65 (4), 532-536, 2002 | 172 | 2002 |
| Host specificity and low reproductive success in the rare endemic Puerto Rican orchid Lepanthes caritensis RL Tremblay, JK Zimmerman, L Lebrón, P Bayman, I Sastre, F Axelrod, ... Biological Conservation 85 (3), 297-304, 1998 | 124 | 1998 |
| A systematic vademecum to the vascular plants of Puerto Rico FS Axelrod Brit Press, 2011 | 94 | 2011 |
| Cyclooxygenase-inhibitory and antioxidant constituents of the aerial parts of Antirhea acutata D Lee, EJ Park, M Cuendet, F Axelrod, PI Chavez, HHS Fong, JM Pezzuto, ... Bioorganic & medicinal chemistry Letters 11 (12), 1565-1568, 2001 | 33 | 2001 |
| Novel 29-nor-3, 4-seco-cycloartane triterpene methyl esters from the aerial parts of Antirhea acutata D Lee, M Cuendet, F Axelrod, PI Chavez, HHS Fong, JM Pezzuto, ... Tetrahedron 57 (33), 7107-7112, 2001 | 27 | 2001 |
| Annotated checklist for the tracheophytes of Río Abajo forest reserve, Puerto Rico P Acevedo-Rodríguez, FS Axelrod Caribean Journal of Sciences, 1999 | 18 | 1999 |
| A systematic vademecum to the vascular plants of Sint Eustatius FS Axelrod BRIT Press, 2017 | 17 | 2017 |
| Gonolobus aloiensis (Apocynaceae, Asclepiadoideae), a new species from St. Eustatius A Krings, FS Axelrod Systematic Botany 38 (4), 1132-1137, 2013 | 7 | 2013 |
| A new species of Tarigidia (Poaceae, Panicoideae, Paniceae) from Puerto Rico and additional evidence for a hybrid origin of the genus AS Vega, ZE Rúgolo de Agrasar, FS Axelrod Systematic Botany 35 (1), 96-101, 2010 | 6 | 2010 |
| Monitoring efforts yield new plant records for Mona Island, Puerto Rico, a tropical dry forest wonderland EJ Meléndez-Ackerman, S Aragón, M Morales-Vargas, J Sustache, ... Caribb. J. Sci 41, 150-152, 2002 | 5 | 2002 |
| Sesquiterpenoids from JQ Gu, JJ Gills, EJ Park, E Mata-Greenwood, ME Hawthorne, F Axelrod Tithonia diversifolia, 532-6, 0 | 5 | |
| (1528) Proposal to conserve the name Guaiacum (Zygophyllaceae) with that spelling FS Axelrod Taxon 51 (1), 203-204, 2002 | 4 | 2002 |
| Lista de especies de traqueofitas de Punta Guayanés, Yabucoa, Puerto Rico JD Chinea, PA Rodríguez, FS Axelrod Caribbean Journal of Science 36 (1/2), 141-145, 2000 | 4 | 2000 |
| Cuatro registros nuevos para la flora adventicia de Puerto Rico F Axelrod, CM Taylor Caribbean Journal of Science 29 (1-2), 125-126, 1993 | 4 | 1993 |
| Taxonomic novelties and synopsis of the genus Digitaria (Poaceae, Panicoideae, Paniceae) in Puerto Rico and the Virgin Islands AS Vega, ZE Rúgolo de Agrasar, FS Axelrod Darwiniana, nueva serie 6 (2), 164-178, 2018 | 2 | 2018 |
| Jacquinia pauciflora (Theophrastaceae), a new species from Puerto Rico B StÅhl, FS Axelrod Brittonia 50, 1-4, 1998 | 2 | 1998 |
| Prolechthesomena to frog hearing FS Axelrod Massachusetts Institute of Technology, Department of Biology, 1960 | 2 | 1960 |
| A Systematic Vademecum to the Vascular Plants of Saba FS Axelrod BRIT Press, 2021 | 1 | 2021 |
| List of species of vascular plants in Punta Guayanés, Yabucoa, Puerto Rico. JD Chinea, P Acevedo-Rodríguez, FS Axelrod | | 2000 |
| List of Tracheophyta species in Punta Guayanes (Yabucoa, Puerto Rico) JD Chinea, P Acevedo-Rodriguez, FS Axelrod CARIBBEAN JOURNAL OF SCIENCE 36 (1-2), 141-145, 2000 | | 2000 |
