JSTOR

Holotype of Oenothera gayleana B.L.Turner [family ONAGRACEAE] Oenothera gayleana Turner, B. L., #24-255 2004-05-25 United States

Isotype of Oenothera guadalupensis (S. Watson) P. H. Raven subsp. clementina P. H. Raven [family ONAGRACEAE] Oenothera guadalupensis clementina Raven, P. H., #17125 1962-04-09 United States

Isotype of Oligonema heterophylla S. Watson [family ASTERACEAE] Oligonema heterophylla Pringle, C. G., #3236 1890-08-30 Mexico

Holotype of Omphalodes chiangii L. C. Higgins [family BORAGINACEAE] Omphalodes chiangii Johnston, M. C.; Wendt, T.; Chiang, F.; Riskind, D. H., #s.n. 1973-07-31 Mexico

Isotype of Omphalodes erecta I. M. Johnst. [family BORAGINACEAE] Omphalodes erecta Mueller, C. H.; Mueller, M. T., #992 1934-07-03 Mexico

Holotype of Omphalodes richardsonii G. L. Nesom [family BORAGINACEAE] Omphalodes richardsonii Richardson, A., #1148 1969-03-29 Mexico

Isotype of Ondinea purpurea Hartog subsp. petaloidea Kenneally & E. L. Schneid. [family NYMPHAEACEAE] Ondinea purpurea petaloidea Schneider, E., #s.n. 1982-01-21 Australia

Isosyntype of Ophioglossum engelmannii Prantl [family OPHIOGLOSSACEAE] Ophioglossum engelmannii Lindheimer, F., #1281 None United States

Holotype of Ophrys barbata Walter [family ORCHIDACEAE] Ophrys barbata Orzell, S. L.; Bridges, E. L., #16163 1991-03-21 United States

Isotype of Opuntia charlestonensis Clokey [family CACTACEAE] Opuntia charlestonensis Clokey, I. W., #8029 1938-07-16 United States

Isotype of Opuntia charlestonensis Clokey [family CACTACEAE] Opuntia charlestonensis Clokey, I. W., #8029 1938-07-16 United States

Isotype of Opuntia densispina Ralston & Hilsenb. [family CACTACEAE] Opuntia densispina Ralston, B. A.; Hilsenbeck, R. A., #200 1989-05-15 United States

Holotype of Opuntia edwardsii V. E. Grant & K. A. Grant [family CACTACEAE] Opuntia edwardsii Grant, V., #s.n. 1979-01-20 United States

Isotype of Oritrophium aciculifolium Cuatrec. [family ASTERACEAE] Oritrophium aciculifolium Wurdack, J. J., #1275 1962-07-09 Peru

Holotype of Oritrophium durangense G. L. Nesom [family ASTERACEAE] Oritrophium durangense Hernández M.; R.; Tenorio L., P., #7676 1982-07-06 Mexico

Holotype of Oritrophium orizabense G. L. Nesom [family ASTERACEAE] Oritrophium orizabense Avila B., C., #112 1992-03-12 Mexico

Isotype of Ormosia amazonica Ducke var. venenifera R. E. Schult. [family FABACEAE] Ormosia amazonica venenifera Schultes, R. E.; Raffauf, R. F.; Soejarto, D., #24107 1966-08-29 - 1966-09-12 Colombia

Isotype of Ormosia amazonica Ducke var. venenifera R. E. Schult. [family FABACEAE] Ormosia amazonica venenifera Schultes, R. E.; Raffauf, R. F.; Soejarto, D., #24107 1966-08-29 - 1966-09-12 Colombia

Isotype of Orthaea paniculata Luteyn [family ERICACEAE] Orthaea paniculata Luteyn, J. L.; Lebrón-Luteyn, M.; Morales L., G., #7402 1979-04-24 Colombia

Isotype of Orthrosanthus chimboracensis (Kunth) Baker var. exsertus R. C. Foster [family IRIDACEAE] Orthrosanthus chimboracensis exsertus Pringle, C. G., #8827 1904-05-27 Mexico