6 206265 Carnegiea gigantea (Engelm.) Britton & Rose [125 225941 Cereus giganteus Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 1 (1839) [P. Roetter]

12 390609 Epithelantha micromeris (Engelm.) F.A.C.Weber ex Britton & Rose [-1-1]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 1 () [P. Roetter]

62 390609 Epithelantha micromeris (Engelm.) F.A.C.Weber ex Britton & Rose [-1]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 2 () [P. Roetter]

12 390609 Epithelantha micromeris (Engelm.) F.A.C.Weber ex Britton & Rose [-1-1]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 2 () [P. Roetter]

2 639217 Mammillaria lasiacantha Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 3 () [P. Roetter]

62 639217 Mammillaria lasiacantha Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 4 () [P. Roetter]

62 639537 Mammillaria prolifera (Miller) Haw. [111 639571 Mammillaria pusilla DC.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 5 () [P. Roetter]

2 638659 Mammillaria barbata Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 6 () [P. Roetter]

2 639056 Mammillaria grahamii Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 6 () [P. Roetter]

6 639797 Mammillaria tetrancistra Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 7 () [P. Roetter]

2 639051 Mammillaria goodridgii Scheer
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 8 () [P. Roetter]

2 639892 Mammillaria wrightii Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 8 () [P. Roetter]

62 639125 Mammillaria heyderi Muehlenpf.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 9 () [P. Roetter]

12 639125 Mammillaria heyderi Muehlenpf.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 9 () [P. Roetter]

6 278415 Coryphantha echinus (Engelm.) Britton & Rose [125 638925 Mammillaria echinus Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 10 () [P. Roetter]

6 278415 Coryphantha echinus (Engelm.) Britton & Rose [125 638925 Mammillaria echinus Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 11 () [P. Roetter]

12 409215 Escobaria dasyacantha (Engelm.) Britton & Rose [-1-1]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 12 () [P. Roetter]

12 409267 Escobaria tuberculosa (Engelm.) Britton & Rose [12 409267 Escobaria tuberculosa (Engelm.) Britton & Rose]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 12 () [P. Roetter]

5 409275 Escobaria vivipara (Nutt.) Buxb. [116 172110 Cactus viviparus Nutt.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 13 () [P. Roetter]

xx 278459 Coryphantha macromeris (Engelm.) Britton & Rose [-1126639280 Mammillaria macromeris Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 14 () [P. Roetter]

xx 278459 Coryphantha macromeris (Engelm.) Britton & Rose [-1126639280 Mammillaria macromeris Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 15 () [P. Roetter]

12 85728 Ariocarpus fissuratus (Engelm.) Schumann [12 85728 Ariocarpus fissuratus (Engelm.) Schumann]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 16 () [P. Roetter]

2 369560 Echinocactus scheeri Salm-Dyck
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 17 () [P. Roetter]

6 924244 Sclerocactus scheeri (Salm-Dyck) N.P. Taylor [125 369560 Echinocactus scheeri Salm-Dyck]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 18 () [P. Roetter]

6 924244 Sclerocactus scheeri (Salm-Dyck) N.P. Taylor [125 369560 Echinocactus scheeri Salm-Dyck]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 19 () [P. Roetter]

2 369591 Echinocactus setispinus Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 20 () [P. Roetter]

5 432076 Ferocactus haematacanthus (Monv. ex Salm-Dyck) Bravo ex Backeb. & F.M.Knuth [181 369270 Echinocactus longihamatus Galeotti ex Pfeiff.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 21 () [P. Roetter]

5 432076 Ferocactus haematacanthus (Monv. ex Salm-Dyck) Bravo ex Backeb. & F.M.Knuth [181 369270 Echinocactus longihamatus Galeotti ex Pfeiff.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 22 () [P. Roetter]

5 432076 Ferocactus haematacanthus (Monv. ex Salm-Dyck) Bravo ex Backeb. & F.M.Knuth [181 369270 Echinocactus longihamatus Galeotti ex Pfeiff.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 23 () [P. Roetter]

5 432076 Ferocactus haematacanthus (Monv. ex Salm-Dyck) Bravo ex Backeb. & F.M.Knuth [181 369270 Echinocactus longihamatus Galeotti ex Pfeiff.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 24 () [P. Roetter]

6 432163 Ferocactus wislizeni (Engelm.) Britton & Rose [125 369742 Echinocactus wislizeni Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 25 () [P. Roetter]

6 432163 Ferocactus wislizeni (Engelm.) Britton & Rose [125 369742 Echinocactus wislizeni Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 26 () [P. Roetter]

6 432095 Ferocactus lecontei (Engelm.) Britton & Rose [125 369247 Echinocactus lecontei Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 27 () [P. Roetter]

6 432163 Ferocactus wislizeni (Engelm.) Britton & Rose [125 369742 Echinocactus wislizeni Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 28 () [P. Roetter]

6 432156 Ferocactus viridescens (Nutt. ex Torrey & A. Gray) Britton & Rose [80 369724 Echinocactus viridescens Nutt.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 29 () [P. Roetter]

6 432028 Ferocactus acanthodes (Lemaire) Britton & Rose [80 368947 Echinocactus cylindraceus Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 30 () [P. Roetter]

2 369160 Echinocactus horizonthalonius Lemaire
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 31 () [P. Roetter]

2 369160 Echinocactus horizonthalonius Lemaire
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 32 () [P. Roetter]

2 369418 Echinocactus parryi Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 32 () [P. Roetter]

2 369672 Echinocactus texensis Hopffer
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 33 () [P. Roetter]

6 403003 Eriosyce aurata (Pfeiff.) Backeb. [125 368820 Echinocactus auratus Pfeiff.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 33 () [P. Roetter]

16 370970 Echinomastus intertextus (Engelm.) Britton & Rose [-1]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 34 () [P. Roetter]

Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 35 () [P. Roetter]

6 370985 Echinomastus unguispinus (Engelm.) Britton & Rose [125 369705 Echinocactus unguispinus Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 35 () [P. Roetter]

71684
6 370319 Echinocereus viridiflorus Engelm.
[370319-370319-226672]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 36 () [P. Roetter]

6 369863 Echinocereus chloranthus (Engelm.) J.N.Haage [125 225732 Cereus chloranthus Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 37 () [P. Roetter]

6 369863 Echinocereus chloranthus (Engelm.) J.N.Haage [125 225732 Cereus chloranthus Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 38 () [P. Roetter]

6 369905 Echinocereus dasyacanthus Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 39 () [P. Roetter]

6 369905 Echinocereus dasyacanthus Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 40 () [P. Roetter]

6 369905 Echinocereus dasyacanthus Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 41 () [P. Roetter]

5 370203 Echinocereus roetteri (Engelm.) Engelm. ex Rümpler [116 226447 Cereus roetteri Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 41 () [P. Roetter]

2 225801 Cereus ctenoides Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 42 () [P. Roetter]

6 370179 Echinocereus reichenbachii (Terscheck) J.N.Haage [125 369521 Echinocactus reichenbachii Terscheck]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 43 () [P. Roetter]

6 370179 Echinocereus reichenbachii (Terscheck) J.N.Haage [125 369521 Echinocactus reichenbachii Terscheck]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 44 () [P. Roetter]

6 370025 Echinocereus longisetus (Engelm.) Lemaire [125 226139 Cereus longisetus Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 45 () [P. Roetter]

6 370260 Echinocereus stramineus (Engelm.) F.Seitz [125 226551 Cereus stramineus Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 46 () [P. Roetter]

6 370260 Echinocereus stramineus (Engelm.) F.Seitz [125 226551 Cereus stramineus Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 47 () [P. Roetter]

6 370260 Echinocereus stramineus (Engelm.) F.Seitz [125 226551 Cereus stramineus Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 48 () [P. Roetter]

6 369933 Echinocereus enneacanthus Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 48 () [P. Roetter]

6 369933 Echinocereus enneacanthus Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 49 () [P. Roetter]

6 369933 Echinocereus enneacanthus Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 50 () [P. Roetter]

71699
6 369947 Echinocereus fendleri (Engelm.) Rümpler [125 225888 Cereus fendleri Engelm.]
[369947-225888-225888]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 51 () [P. Roetter]

6 369947 Echinocereus fendleri (Engelm.) Rümpler [125 225888 Cereus fendleri Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 52 () [P. Roetter]

6 369947 Echinocereus fendleri (Engelm.) Rümpler [125 225888 Cereus fendleri Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 53 () [P. Roetter]

6 370138 Echinocereus polyacanthus Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 54 () [P. Roetter]

6 370138 Echinocereus polyacanthus Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 55 () [P. Roetter]

5 369886 Echinocereus coccineus Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 56 () [P. Roetter]

6 369922 Echinocereus engelmannii (Parry ex Engelm.) Lemaire [125 225860 Cereus engelmannii Parry ex Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 57 () [P. Roetter]

6 369825 Echinocereus berlandieri (Engelm.) J.N.Haage [125 225628 Cereus berlandieri Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 58 () [P. Roetter]

5 370121 Echinocereus pentalophus (DC.) Lemaire [116 226319 Cereus pentalophus DC.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 59 () [P. Roetter]

5 370148 Echinocereus poselgeri Lemaire
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): p. 39, t. 59, fig. 12 () [P. Roetter]

6 139133 Bergerocactus emoryi (Engelm.) Britton & Rose [125 225859 Cereus emoryi Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 60 () [P. Roetter]

5 7613 Acanthocereus tetragonus (L.) Hummelinck [116 172069 Cactus tetragonus L.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 60 () [P. Roetter]

6 206265 Carnegiea gigantea (Engelm.) Britton & Rose [125 225941 Cereus giganteus Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 61 () [P. Roetter]

6 206265 Carnegiea gigantea (Engelm.) Britton & Rose [125 225941 Cereus giganteus Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 62 () [P. Roetter]

5 762736 Peniocereus greggii (Engelm.) Britton & Rose [116 225972 Cereus greggii Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 63 () [P. Roetter]

5 762736 Peniocereus greggii (Engelm.) Britton & Rose [116 225972 Cereus greggii Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 64 () [P. Roetter]

Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 65 () [P. Roetter]

2 720873 Opuntia stenopetala Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 66 () [P. Roetter]

2 720879 Opuntia strigil Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 67 () [P. Roetter]

12 720490 Opuntia macrorhiza Engelm. [80 720237 Opuntia filipendula Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 68 () [P. Roetter]

2 720490 Opuntia macrorhiza Engelm.
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 69 () [P. Roetter]

6 1134377 Corynopuntia emoryi (Engelm.) M.P.Griff. [125 720182 Opuntia emoryi Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 70 () [P. Roetter]

6 1134377 Corynopuntia emoryi (Engelm.) M.P.Griff. [125 720182 Opuntia emoryi Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 71 () [P. Roetter]

6 1134378 Corynopuntia grahamii (Engelm.) F.M.Knuth [125 720302 Opuntia grahamii Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 72 () [P. Roetter]

6 1134388 Corynopuntia schottii (Engelm.) F.M.Knuth [125 720816 Opuntia schottii Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 73 () [P. Roetter]

6 1134374 Corynopuntia bulbispina (Engelm.) F.M.Knuth [125 719991 Opuntia bulbispina Engelm.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 73 () [P. Roetter]

6 1139522 Cylindropuntia imbricata (Haw.) F.M.Knuth [125 226045 Cereus imbricatus Haw.]
Rep. U.S. Mex. Bound. (Cactaceae of the boundary): t. 73 () [P. Roetter]

2 369608 Echinocactus simpsonii Engelm.
G. Engelmann, see 309: t. 1 (1876) [P. Roetter]

2 369608 Echinocactus simpsonii Engelm.
G. Engelmann, see 309: t. 2 (1876) [P. Roetter]

6 1189135 Micropuntia pulchella (Engelm.) M.P.Griff. [125 720723 Opuntia pulchella Engelm.]
G. Engelmann, see 309: t. 3 (1876) [P. Roetter]

2 369608 Echinocactus simpsonii Engelm.
G. Engelmann, Rep. Bot. Exped. Capt. Simpson Utah: t. 1 (1876) [P. Roetter]

2 369608 Echinocactus simpsonii Engelm.
G. Engelmann, Rep. Bot. Exped. Capt. Simpson Utah: t. 2 (1876) [P. Roetter]

6 1189135 Micropuntia pulchella (Engelm.) M.P.Griff. [125 720723 Opuntia pulchella Engelm.]
G. Engelmann, Rep. Bot. Exped. Capt. Simpson Utah: t. 3 (1876) [P. Roetter]

2 794319 Pinus elliottii Engelm.
G. Engelmann, Rev. genus Pinus: t. 1 (1880) [P. Roetter]

2 794319 Pinus elliottii Engelm.
G. Engelmann, Rev. genus Pinus: t. 2 (1880) [P. Roetter]

2 794319 Pinus elliottii Engelm.
G. Engelmann, Rev. genus Pinus: t. 3 (1880) [P. Roetter]

2 369736 Echinocactus whipplei Engelm. & J.M.Bigelow
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 1 (1853-1856) [P. Roetter]

6 924240 Sclerocactus polyancistrus (Engelm. & J.M. Bigelow) Britton & Rose [80 369468 Echinocactus polyancistrus Engelm. & J.M.Bigelow]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 2 (1853-1856) [P. Roetter]

6 432095 Ferocactus lecontei (Engelm.) Britton & Rose [125 369247 Echinocactus lecontei Engelm.]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 2 (1853-1856) [P. Roetter]

6 432163 Ferocactus wislizeni (Engelm.) Britton & Rose [125 369742 Echinocactus wislizeni Engelm.]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 3 (1853-1856) [P. Roetter]

2 369469 Echinocactus polycephalus Engelm. & J.M.Bigelow
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 3 (1853-1856) [P. Roetter]

5 369886 Echinocereus coccineus Engelm.
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 4 (1853-1856) [P. Roetter]

1 225783 Cereus conoideus Engelm. & Bigelow
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 4 (1853-1856) [P. Roetter]

6 370285 Echinocereus triglochidiatus Engelm.
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 4 (1853-1856) [P. Roetter]

2 225635 Cereus bigelovii Engelm.
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 4 (1853-1856) [P. Roetter]

5 370285 Echinocereus triglochidiatus Engelm.
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 5 (1853-1856) [P. Roetter]

63 369922 Echinocereus engelmannii (Parry ex Engelm.) Lemaire [109 225860 Cereus engelmannii Parry ex Engelm.]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 5 (1853-1856) [P. Roetter]

2 720043 Opuntia chlorotica Engelm. & J.M. Bigelow
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 6 (1853-1856) [P. Roetter]

6 720661 Opuntia phaeacantha Engelm.
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 6 (1853-1856) [P. Roetter]

2 720609 Opuntia occidentalis Engelm. & J. M. Bigelow (pro sp.) [0]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 7 (1853-1856) [P. Roetter]

6 720661 Opuntia phaeacantha Engelm.
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 7 (1853-1856) [P. Roetter]

58 720102 Opuntia cyclodes (Engelm. & J.M. Bigelow) Rose [107 720190 Opuntia engelmannii var. cyclodes Engelm. & J.M. Bigelow]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 8 (1853-1856) [P. Roetter]

12 720490 Opuntia macrorhiza Engelm.
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 8 (1853-1856) [P. Roetter]

12 720661 Opuntia phaeacantha Engelm. [80 720005 Opuntia camanchica Engelm. & J.M. Bigelow]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 9 (1853-1856) [P. Roetter]

2 720567 Opuntia mohavensis Engelm. & J.M.Bigelow
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 9 (1853-1856) [P. Roetter]

6 720233 Opuntia ficus-indica (L.) Miller [125 171633 Cactus ficus-indica L.]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 10 (1853-1856) [P. Roetter]

12 720349 Opuntia humifusa (Raf.) Raf. [12 720349 Opuntia humifusa (Raf.) Raf.]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 10 (1853-1856) [P. Roetter]

62 720349 Opuntia humifusa (Raf.) Raf. [111 720740 Opuntia rafinesquei Engelm.]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 11 (1853-1856) [P. Roetter]

12 720349 Opuntia humifusa (Raf.) Raf. [12 720349 Opuntia humifusa (Raf.) Raf.]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 11 (1853-1856) [P. Roetter]

12 720490 Opuntia macrorhiza Engelm.
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 12 (1853-1856) [P. Roetter]

12 720065 Opuntia compressa J.F. Macbr. [80 720872 Opuntia stenochila Engelm. & J.M. Bigelow]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 12 (1853-1856) [P. Roetter]

2 720272 Opuntia fusiformis Engelm. & J.M.Bigelow
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 12 (1853-1856) [P. Roetter]

6 720251 Opuntia fragilis (Nutt.) Haw. [125 171647 Cactus fragilis Nutt.]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 12 (1853-1856) [P. Roetter]

2 719941 Opuntia basilaris Engelm. & J.M. Bigelow
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 13 (1853-1856) [P. Roetter]

2 720846 Opuntia sphaerocarpa Engelm. & J.M.Bigelow
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 13 (1853-1856) [P. Roetter]

2 720208 Opuntia erinacea Engelm. & J.M. Bigelow
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 13 (1853-1856) [P. Roetter]

6 720692 Opuntia polyacantha Haw.
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 14 (1853-1856) [P. Roetter]

58 720692 Opuntia polyacantha Haw.
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 14 (1853-1856) [P. Roetter]

62 720692 Opuntia polyacantha Haw. [111 720560 Opuntia missouriensis DC.]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 14 (1853-1856) [P. Roetter]

6 720692 Opuntia polyacantha Haw.
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 14 (1853-1856) [P. Roetter]

62 720692 Opuntia polyacantha Haw. [111 720560 Opuntia missouriensis DC.]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 14 (1853-1856) [P. Roetter]

58 720692 Opuntia polyacantha Haw.
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 15 (1853-1856) [P. Roetter]

6 720208 Opuntia erinacea Engelm. & J.M. Bigelow
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 15 (1853-1856) [P. Roetter]

6 1139500 Cylindropuntia davisii (Engelm. & J.M.Bigelow) F.M.Knuth [125 720110 Opuntia davisii Engelm. & J.M.Bigelow]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 16 (1853-1856) [P. Roetter]

6 1139594 Cylindropuntia whipplei (Engelm. & J.M.Bigelow) F.M.Knuth [125 720991 Opuntia whipplei Engelm. & J.M.Bigelow]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 17 (1853-1856) [P. Roetter]

12 1139522 Cylindropuntia imbricata (Haw.) F.M.Knuth [12 1139522 Cylindropuntia imbricata (Haw.) F.M.Knuth]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 17 (1853-1856) [P. Roetter]

12 1139522 Cylindropuntia imbricata (Haw.) F.M.Knuth [12 1139522 Cylindropuntia imbricata (Haw.) F.M.Knuth]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 18 (1853-1856) [P. Roetter]

6 1139504 Cylindropuntia echinocarpa (Engelm. & J.M.Bigelow) F.M.Knuth [125 720159 Opuntia echinocarpa Engelm. & J.M.Bigelow]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 18 (1853-1856) [P. Roetter]

6 1139533 Cylindropuntia leptocaulis (DC.) F.M.Knuth [125 720427 Opuntia leptocaulis DC.]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 20 (1853-1856) [P. Roetter]

58 1139533 Cylindropuntia leptocaulis (DC.) F.M.Knuth [107 720427 Opuntia leptocaulis DC.]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 20 (1853-1856) [P. Roetter]

6 1139559 Cylindropuntia ramosissima (Engelm.) F.M.Knuth [125 720749 Opuntia ramosissima Engelm.]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 21 (1853-1856) [P. Roetter]

12 1139480 Cylindropuntia californica (Torr. & A.Gray) F.M.Knuth [80 720645 Opuntia parryi Engelm.]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 22 (1853-1856) [P. Roetter]

6 119869 Austrocactus spiniflorus (Phil.) F.Ritter [125 720850 Opuntia spiniflora Phil.]
J. Torrey, Pacif. Railr. Rep., vol. 4 fasicle 3, : t. 22 (1853-1856) [P. Roetter]