Cactus humifusus
| Cactus humifusus Rafinesque, Ann. Nat. 1: 15. 1820. | | TYPE: PENNSYLVANIA: Berks Co.: 0.75 mi. SW of New Jerusalem, 10 Jul 1927, Wherry s.n. (neotype: NY). Neotypified by Leuenberger, Taxon 42: 426. 1993. |
Cactus opuntia var. nana
| Cactus opuntia Linnaeus, var. nana de Candolle, Pl. Hist. Succ. pl. 138(opposite). 1804. | | TYPE: Without data (lectotype: de Candolle, Pl. Hist Succ. pl. 138(opp.). 1804). Lectotypified by L. D. Benson, Cacti U.S. Canada 923. 1982. |
Opuntia abjecta
| Opuntia abjecta Small ex Britton & Rose, Cact. 4: 257. 1923. | | TYPE: FLORIDA: Monroe Co.: Big Pine Key, 12 Apr 1921, Small & Matthews s.n. (holotype: NY). |
Opuntia ammophila
| Opuntia ammophila Small, J. New York Bot. Gard. 20: 29. 1919. | | TYPE: FLORIDA: St. Lucie Co.: St. Lucie Sound 6 mi. S of Fort Pierce, 20 Dec 1917, Small 8456 (holotype: NY; isotype: NY). |
Opuntia austrina
| Opuntia austrina Small, Fl. S.E. U.S. 816, 1335. 1903. | | TYPE: FLORIDA: Miami-Dade Co.: Miami, 28 Oct-28 Nov 1903, Small 1216. (neotype:US. Neotypified by Majure et al., Phytotaxa 290(1): 19. 2017. |
Opuntia compressa var. ammophila
| Opuntia compressa J. F. Macbride, var. ammophila (Small) L. D. Benson, Cact. Succ. J. (Los Angeles) 41: 124. 1969. | BASIONYM: Opuntia ammophila Small 1919. | |
Opuntia compressa var. austrina
| Opuntia compressa J. F. Macbride, var. austrina (Small) L. D. Benson, Cact. Succ. J. (Los Angeles) 41: 125. 1969. | BASIONYM: Opuntia austrina Small 1903. | |
Opuntia cumulicola
| Opuntia cumulicola Small, Man. S.E. Fl. 907, 1506. 1933. | | TYPE: FLORIDA: Miami-Dade Co.: Bull Key opposite Lemon City, 6 Nov 1903, Small & Carter 970 (holotype: NY; isotypes: NY, US). |
Opuntia eburnispina
| Opuntia eburnispina Small ex Britton & Rose, Cact. 4: 260, f. 237. 1923. | | TYPE: FLORIDA: Collier Co.: Cape Romano, 10 May 1922, Small s.n. (holotype: NY). |
Opuntia humifusa var. ammophila
| Opuntia humifusa (Rafinesque) Rafinesque, var. ammophila (Small) L. D. Benson, Cact. Succ. J. (Los Angeles) 48: 59. 1976. | BASIONYM: Opuntia ammophila Small 1919. | |
Opuntia humifusa var. austrina
| Opuntia humifusa (Rafinesque) Rafinesque, var. austrina (Small) Dress, Baileya 19: 165. 1975. | BASIONYM: Opuntia austrina Small 1903. | |
Opuntia impedata
| Opuntia impedata Small ex Britton & Rose, Cact. 4: 257, f. 235. 1923. | | TYPE: FLORIDA: Duval Co.: Atlantic Beach E of Jacksonville, Apr 1921, Small s.n. (holotype: NY; isotypes: US). |
Opuntia lata
| Opuntia lata Small, J. New York Bot. Gard. 20: 26. 1919. | | TYPE: FLORIDA: Alachua Co.: 12 mi. W of Gainesville, 13 Dec 1917, Small s.n. (holotype: NY). |
Opuntia mesacantha subsp. lata
| Opuntia mesacantha Rafinesque, subsp. lata (Small) Majure, Phytoneuron 2014(106): 1. 2014. | BASIONYM: Opuntia lata Small 1919. | |
Opuntia nana
| Opuntia nana (de Candolle) Visiani, Fl. Dalmat. 3: 143. 1850. | BASIONYM: Cactus opuntia Linnaeus, var. nana de Candolle 1804. | |
Opuntia pisciformis
| Opuntia pisciformis Small ex Britton & Rose, Cact. 4: 258, f. 236. 1923. | | TYPE: FLORIDA: Duval Co.: Pilot Island, Atlantic Beach, 26 Apr 1921, Small s.n. (holotype: NY). |
Opuntia pollardii
| Opuntia pollardii Britton & Rose, Smithsonian Misc. Coll. 50: 523. 1908. | | TYPE: MISSISSIPPI: Harrison Co.: Biloxi, 1 Aug 1896, Pollard 1138 (holotype: NY; isotypes: CU, F, GH, MO, US). |
Opuntia polycarpa
| Opuntia polycarpa Small, Man. S.E. Fl. 906, 1506. 1933. | | TYPE: FLORIDA: Collier Co.: Caxambas Island, 11 May 1922, Small s.n. (holotype: NY; isotypes: NY, US). |
Opuntia rafinesquei
| Opuntia rafinesquei Engelmann, Proc. Amer. Acad. Arts 3: 295. 1856, nom. illegit. | BASIONYM: Cactus humifusus Rafinesque 1820. | |
Opuntia turbinata
| Opuntia turbinata Small, Man. S.E. Fl. 910, 1506. 1933. | | TYPE: FLORIDA: Duval Co.: "St. Scorge Island" [Fort George Island], 22 Aug 1922, Small s.n. (holotype: NY?). |
Opuntia turgida
| Opuntia turgida Small ex Britton & Rose, Cact. 4: 265. 1923. | | TYPE: FLORIDA: Volusia Co.: Ca. 5 mi. S of Daytona, 31 Nov 1919, Small et al. s.n. (holotype: NY; isotypes: NY, US). |
Opuntia vulgaris forma nana
| Opuntia vulgaris Miller, forma nana (de Candolle) Schelle, Handb. Kakteenkult. 50. 1907. | BASIONYM: Cactus opuntia Linnaeus, var. nana de Candolle 1804. | |
Opuntia vulgaris var. nana
| Opuntia vulgaris Miller, var. nana (de Candolle) K. Schumann, Gesamtbeschr. Kakt. 715. 1898. | BASIONYM: Cactus opuntia Linnaeus, var. nana de Candolle 1804. | |
Opuntia vulgaris var. rafinesquei
| Opuntia vulgaris Miller, var. rafinesquei A. Gray, Manual, ed. 2. 136. 1856. | BASIONYM: Opuntia rafinesquei Engelmann 1856, nom. illegit; Cactus humifusus Rafinesque 1820. | |
Opuntia youngii
| Opuntia youngii C. Z. Nelson, Trans. Illinois Acad. Sci. 12: 119. 1919. | | TYPE: FLORIDA: Hillsborough Co.: Little Manatee River State Park, E side of main park drive, 250 ft. S of Ranger Station, 27 Apr 1999, Myers 360 (neotype: USF). Neotypified by Majure et al., Phytotaxa 290(1): 52. 2017. |
Opuntia allairei
| Opuntia allairei Griffiths, Ill. Stud. Opuntia 2: 83, t. 2(2), t, 12(upper), 13(9). 1909. | | TYPE: TEXAS: Chambers Co.: Near the mouth of the Trinity River, cult. at San Antonio, Apr 1908, Allaire 322 (holotype: US). |
Opuntia calcicola
| Opuntia calcicola Wherry, J. Wash. Acad. Sci. 16: 12, f. 1. 1926. | | TYPE: WEST VIRGINIA: Jefferson Co.: Along the Baltimore & Ohio Railroad track ca. 2 mi. N of Harper's Ferry railroad station, 10 Jun 1925, Wherry s.n. (holotype: US; isotype: NY). |
Opuntia cespitosa
| Opuntia cespitosa Rafinesque, Bull. Bot. (Geneva) 1: 216. 1830. | | TYPE: KENTUCKY: Woodford Co.: KY 60 at the junction with KY 62, just N of Versailes, 9 Jun 2008, Majure 3275 (neotype: FLAS; isoneotype: US). Neotypified by Majure, Phytoneuron 2014(106): 1. 2014. |
Opuntia compressa var. fuscoatra
| Opuntia compressa J. F. Macbride, var. fuscoatra (Engelmann) Weniger ex Bravo, Cact. Mexico 254. 1978. | BASIONYM: Opuntia fuscoatra Engelmann 1856. | |
Opuntia compressa var. microsperma
| Opuntia compressa J. F. Macbride, var. microsperma (Engelmann) L. D. Benson, Proc. Calif. Acad. Sci., ser. 4. 25: 250. 1944. | BASIONYM: Opuntia rafinesquei Engelmann, var. microsperma Engelmann 1856. | |
Opuntia fuscoatra
| Opuntia fuscoatra Engelmann, Proc. Amer. Acad. Arts 3: 297. 1856. | | TYPE: TEXAS: Harris Co.: W of Houston, May 1842, Lindheimer 33 (lectotype: MO). Lectotypified by L. D. Benson, Cacti U.S. Canada 923. 1982. |
Opuntia humifusa var. microsperma
| Opuntia humifusa (Rafinesque) Rafinesque, var. microsperma (Engelmann) A. Heller, Cat. N. Amer. Pl., ed. 2. 8. 1900. | BASIONYM: Opuntia rafinesquei Engelmann, var. microsperma Engelmann 1856. | |
Opuntia humifusa var. parva
| Opuntia humifusa (Rafinesque) Rafinesque, var. parva A. Heller, Cat. N. Amer. Pl., ed. 2. 8. 1900, nom. illegit. | BASIONYM: Opuntia mesacantha Rafinesque, var. parva J. M. Coulter 1896, nom. illegit.; Opuntia rafinesquei Engelmann, var. minor Engelmann 1857. | |
Opuntia intermedia
| Opuntia intermedia Salm-Reifferscheid-Dyck, Hort. Dyck. 364. 1834. | | |
Opuntia macateei
| Opuntia macateei Britton & Rose, Cact. 1: 221, f. 292-293. 1919. | | TYPE: TEXAS: Aransas Co.: Rockport, 28 Dec 1910, McAtee 1992 (holotype: US; isotype: NY). |
Opuntia mesacantha
| Opuntia mesacantha Rafinesque, Bull. Bot. (Geneva) 1: 216. 1830. | | TYPE: VIRGINIA: Elizabeth City Co.: Hampton, 31 May 1878, Chickering s.n. (neotype: US). Neotypified by Majure, Phytoneuron 2014(106): 1. 2014. |
Opuntia mesacantha var. microsperma
| Opuntia mesacantha Rafinesque, var. microsperma (Engelmann) J. M. Coulter, Contr. U.S. Natl. Herb. 3: 429. 1896. | BASIONYM: Opuntia rafinesquei Engelmann, var. microsperma Engelmann 1856. | |
Opuntia mesacantha var. parva
| Opuntia mesacantha Rafinesque, var. parva J. M. Coulter, Contr. U.S. Natl. Herb. 3: 429. 1896, nom. illegit. | BASIONYM: Opuntia rafinesquei Engelmann, var. minor Engelmann 1857. | |
Opuntia nemoralis
| Opuntia nemoralis Griffiths, Monatsschr. Kakteenk. 23: 133. 1913. | | TYPE: TEXAS: Harrison Co.: Longview, Oct 1911, Griffiths 10480 (holotype: US; isotypes: POM). |
Opuntia rafinesquei forma arkansana
| Opuntia rafinesquei Engelmann, forma arkansana (Engelmann ex Rümpler) Schelle, Handb. Kakteenkult. 50. 1907. | BASIONYM: Opuntia rafinesquei Engelmann, var. arkansana Engelmann ex Rümpler 1885. | |
Opuntia rafinesquei var. arkansana
| Opuntia rafinesquei Engelmann, var. arkansana Engelmann ex Rümpler, in C. Foerster, Handb. Cacteenk., ed. 2. 922. 1885. | | TYPE: ARKANSAS: Sebastian Co.: Fort Smith, Jun 1853, Bigelow s.n. (neotype: MO). Neotypified by L. D. Benson, Cacti U.S. Canada 924. 1982. |
Opuntia rafinesquei var. microsperma
| Opuntia rafinesquei Engelmann, var. microsperma Engelmann, Proc. Amer. Acad. Arts 3: 295. 1856. | | TYPE: Cult. in St. Louis, Apr. 1854, Engelmann (?) s.n. (lectotype: MO). Lectotypified by Coulter, Contr. U.S. Natl. Herb. 3: 429. 1896. |
Opuntia rafinesquei var. minor
| Opuntia rafinesquei Engelmann, var. minor Engelmann, in Engelmann & J. M. Bigelow, Rep. Expl. Surv. Pacific Ocean, Botany 55, pl. 11(1). 1857. | | TYPE: MISSOURI: Madison Co.: Mine la Motte, Nov 1845, Engelmann s.n. (lectotype: MO). Lectotypified by J. M. Coulter, Contr. U.S. Natl. Herb. 3: 429. 1896. |
Opuntia rafinesquei var. parva
| Opuntia rafinesquei Engelmann, var. parva J. N. Haage & E. Schmidt, Verz. Blumenzwiebeln 1915: 29. 1915, nom. illegit. | BASIONYM: Opuntia mesacantha Rafinesque, var. parva J. M. Coulter 1896, nom. illegit.; Opuntia rafinesquei Engelmann, var. minor Engelmann 1857. | |
Opuntia rubiflora
| Opuntia rubiflora Griffiths, Bull. Torrey Bot. Club 43: 529. 1916, non Davidson 1916. | | |
Opuntia vulgaris var. media
| Opuntia vulgaris Miller, var. media Salm-Reifferscheid-Dyck, Observ. Bot. Horto Dyck. 3: 9. 1822. | | |
Opuntia xanthoglochia
| Opuntia xanthoglochia Griffiths, Rep. (Annual) Missouri Bot. Gard. 21: 166, pl. 20(lower). 1910. | | TYPE: TEXAS: Milam Co.: Near Milano, 11 Jul 1908, Griffiths 9355 (holotype: US; isotype: POM). |