Neolloydia Britton & Rose, Bulletin of the Torrey Botanical Club 49: 251-252, 1922

Neolloydia aguirreana   

Neolloydia beguinii (F.A.C. Weber) Britton & Rose, Bulletin of the Torrey Botanical Club 49 (8): 252, 1922

Neolloydia beguinii v. senilis (Josefski) F. M. Knuth in Backeberg & F. M. Knuth, Kaktus-ABC 368., 1935

Neolloydia ceratites (Quehl) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 4: 16, f. 16, 1923

Neolloydia clavata (Scheidweiler) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 4: 15-16, f. 14, 1923

Neolloydia conoidea (DC.) Britton & Rose, Bulletin of the Torrey Botanical Club 49 (8): 252, 1922

Neolloydia conoidea v. ceratites (Quehl) Kladiwa & Fittkau, Kakteen. 46-47: CVIIIb.: et l. c., 48-49: CVIIIb. (1972), 1971

Neolloydia conoidea v. depressa Fric, Ceskoslov. Zahradn. Listy: 122. 1924 Nomen nudum, 1924

Neolloydia conoidea v. grandiflora (Otto) Kladiwa & Fittkau, Kakteen, 46-47: CVIIIb., 1971

Neolloydia conoidea v. matehualensis (Backeberg) Kladiwa & Fittkau, Kakteen. 46-47: CVIIIb., 1971

Neolloydia conoidea v. texensis (Britton & Rose) Kladiwa & Fittkau, Kakteen. 46-47 CVIIIb., 1971

Neolloydia cubensis   

Neolloydia durangensis (Runge) L. Benson, Cact. Succ. J. (U. S. A.). 46 (2): 81, 1974

Neolloydia emscoetteriana   

Neolloydia erectocentra (J.M. Coulter) L.D. Benson, The cacti of Arizona 24, 1969

Neolloydia erectocentra v. acunensis (W. T. Marshall) L.D. Benson, The cacti of Arizona 25, 1969

Neolloydia erectocentra v. erectocentra   

Neolloydia gautii L.D. Benson, Cactus and Succulent Journal [U. S. ] 46: 80, 1974

Neolloydia gielsdorfiana (Werdermann) F. M. Knuth, Backeb. & F. M. Knuth, Kaktus-ABC, 366, 1935

Neolloydia grandiflora (Otto) F. M. Knuth, Backeb. & F. M. Knuth, Kaktus-ABC, 368, 1935

Neolloydia grandiflora v. robusta J. Riha, Kakt. And. Sukk., 32 (6): 128, 1981

Neolloydia hoferi (Lüthy & A.B. Lau) A.T. Powell, Brit. Cact. Succ. J., cf. Repert. Pl. Succ. (I. O. S.), 13 (4): 155, without basionym ref.; 46: 12 (1995 publ. 1996): 1995

Neolloydia horripila (Lemaire) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 4: 16, f. 13, 1923

Neolloydia intertexta (Engelmann) L.D. Benson, The cacti of Arizona 24, 1969

Neolloydia intertexta v. dasyacantha (Engelmann) L.D. Benson, Cact. Succ. J. (Los Angeles) 41: 233., 1969

Neolloydia intertexta v. intertexta Benson  

Neolloydia johnsonii (Engelmann) L.D. Benson, The cacti of Arizona 25, 1969

Neolloydia knuthiana (Boedeker) F. M. Knuth, Backeb. & F. M. Knuth, Kaktus-ABC, 367, 1935

Neolloydia knuthiana v. ysabelae (Schlange) A.T. Powell, Brit. Cact. Succ. J., cf. Repert. Pl. Succ. (I. O. S.), 13 (4): 154, without basionym ref.; 46: 12 (1995 publ. 1996): 1995

Neolloydia krainziana (G. Frank) A.T. Powell, Brit. Cact. Succ. J., cf. Repert. Pl. Succ. (I. O. S.), 13 (4): 156, without basionym ref.; 46: 13 (1995 publ. 1996): 1995

Neolloydia krainziana v. minima (G. Frank) A.T. Powell, Brit. Cact. Succ. J., cf. Repert. Pl. Succ. (I. O. S.), 13 (4): 156, without basionym ref.; 46: 13 (1995 publ. 1996): 1995

Neolloydia laui (Glass & R.A. Foster) E.F. Anderson, Bradleya, 4: 22: 1986

Neolloydia lophophoroides (Werdermann) E.F. Anderson, Bradleya, 4: 22: 1986

Neolloydia macdowellii (Rebut ex Quehl) H.E. Moore, Baileya 19: 166. 1975, 

Neolloydia mandragora (Fric ex A. Berger) E.F. Anderson, Bradleya, 4: 14: 1986

Neolloydia mariposensis (Hester) L.D. Benson, Cact. & Succ. Journ. Amer. 41. 188, 1969

Neolloydia matehualensis Backeberg, Journ. Cact. & Succ. Soc. Austral. 1. 108 [1949]; cf. Gray Herb. Card Cat., 

Neolloydia odorata (Boedeker) Backeberg, Blatter Kakteenforsch. No. 3, p. [4], 1937

Neolloydia orcuttii Rose ex Orcutt, Cactography 5, 1926

Neolloydia pilispina (J.A. Purpus) Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 4: 14, f. 12, 1923

Neolloydia pilispina

Neolloydia pseudomacrochele (Backeberg) E.F. Anderson, Bradleya, 4: 22: 1986

Neolloydia pseudopectinata (Backeberg) E.F. Anderson, Bradleya, 4: 15: 1986

Neolloydia pseudopectinata v. rubriflora A.T. Powell, Brit. Cact. Succ. J., cf. Repert. Pl. Succ. (I. O. S.), 13 (4): 155, without latin descr. or type; 46: 13 (1995 publ. 1996), 1995

Neolloydia pulleineana Backeberg, Journ. Cact. & Succ. Soc. Austral. 1. 108 [1949]; cf. Gray Herb. Card Cat., 

Neolloydia roseana (Boedeker) F. M. Knuth, Backeb. & F. M. Knuth, Kaktus-ABC, 368, 1935

Neolloydia roseiflora A.T. Powell, Brit. Cact. Succ. J., cf. Repert. Pl. Succ. (I. O. S.), 13 (4): 156, without latin descr. or type; 46: 13 (1995 publ. 1996), 1995

Neolloydia saueri (Boedeker) F. M. Knuth, Backeb. & F. M. Knuth, Kaktus-ABC, 367, 1935

Neolloydia schmiedickeana (Boedeker) E.F. Anderson, Bradleya, 4: 19: 1986

Neolloydia schmiedickeana v. dickisoniae (C. Glass & R.A. Foster) Anderson, Bradleya, 4: 20: 1986

Neolloydia schmiedickeana v. flaviflora (G. Frank & Lau) Anderson, Bradleya, 4: 20: 1986

Neolloydia schmiedickeana v. gracilis (C. Glass & R.A. Foster) Anderson, Bradleya, 4: 19: 1986

Neolloydia schmiedickeana v. klinkeriana (Backeberg & H.J. Jacobsen) E.F. Anderson, Bradleya, 4: 20: 1986

Neolloydia schmiedickeana v. macrochele (Werdermann) Anderson, Bradleya, 4: 20: 1986

Neolloydia schmiedickeana v. schmiedickiana   

Neolloydia schmiedickeana v. schwarzii (Shurly) E.F. Anderson, Bradleya, 4: 20: 1986

Neolloydia schmiedickeana v. schwarzii polaskii   

Neolloydia sect. Conoideae Kladiwa & Fittkau, Kakteen, 46- 47: CVIIIb., nom. illegit., 1971

Neolloydia sect. Smithianae Kladiwa & Fittkau, Kakteen, 46- 47: CVIIIb., 1971

Neolloydia smithii (Muehlenpf.) Kiadiwa & Fittkau, Kakteen. 46-47: CVIIIb., 1971

Neolloydia smithii v. beguinii (A. Weber) Kladiwa & Fittkau, Kakteen, 46-47: CVIIIb., 1971

Neolloydia smithii v. smithii   

Neolloydia stuetzlei Orcutt, Cactography 8., 1926

Neolloydia subterranea (Backeberg) H. E. Moore, Baileya 19: 165. 1975, 

Neolloydia subterranea ssp. zaragozae (C. Glass & R.A. Foster) Anderson, Cactaceae Consensus Initiatives, 7: 12: 1999

Neolloydia subterranea v. subterranea   

Neolloydia subterranea v. zaragozae

Neolloydia swobodae (Diers) A.T. Powell, Brit. Cact. Succ. J., cf. Repert. Pl. Succ. (I. O. S.), 13 (4): 156, without basionym ref.; 46: 13 (1995 publ. 1996): 1995

Neolloydia texensis Britton & Rose, The Cactaceae; descriptions and illustrations of plants of the cactus family 4: 18, f. 18, 1923

Neolloydia unguispina (Engelmann) L. Benson, Cact. Succ. J. (U. S. A.). 46 (2): 80, 1974

Neolloydia valdeziana (H. Moeller) E.F. Anderson, Bradleya, 4: 14: 1986

Neolloydia valdeziana v. albiflora A.T. Powell, Brit. Cact. Succ. J., cf. Repert. Pl. Succ. (I. O. S.), 13 (4): 155, without latin descr. or type; 46: 13 (1995 publ. 1996), 1995

Neolloydia viereckii (Werdermann) Knuth, Backeb. & F. M. Knuth, Kaktus-ABC, 368, 1935

Neolloydia viereckii v. major (Glass & R.A. Foster) E.F. Anderson, Bradleya, 4: 15: 1986

Neolloydia viereckii v. viereckii   

Neolloydia warnockii L.D. Benson, Cactus and Succulent Journal [U. S. ] 51: 186, 1969

Neolloydia ysabelae