172 Fields number on the database for Ralph Peters

All Agave Ariocarpus Bursera Coryphantha Dudleya Echinocactus Echinocereus Echinomastus Escobaria Ferocactus Glandulicactus Mammillaria Opuntia Pediocactus Peniocereus Sclerocactus Thelocactus Toumeya      

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Species	Field number	Locality	Picture
Pediocactus simpsonii	RP 63	USA : Utah (Near Arizona / Utah border, Kane County)
Mammillaria tetrancistra	RP 64	USA : Nevada (Clark County)
Echinocereus viridiflorus	RP 65	USA : New Mexico (Philmont, Colfax County)
Mammillaria grahamii v. grahamii	RP 66	USA : New Mexico (Otero County)
Sclerocactus parviflorus	RP 67	USA : Colorado (McElmo Canyon stops, Montezuma County)
Sclerocactus parviflorus	RP 68	USA : Colorado (McElmo Canyon stops, Montezuma County)
Sclerocactus parviflorus	RP 69	USA : Colorado (McElmo Canyon stops, Montezuma County)
Echinocereus fasciculatus v. fasciculatus	RP 70	USA : Arizona (Mammoth, Pinal County)
Echinocereus fasciculatus v. bonkerae	RP 71	USA : Arizona (Oracle, Pinal County)
Agave toumeyana v. toumeyana	RP 72	USA : Arizona (Pinal County)
Echinocereus nicholii	RP 73	USA : Arizona (Silver Bell Mountains, Pima County)
Ferocactus acanthodes v. eastwoodiae	RP 74	USA : Arizona (Pinal County)
Echinocereus engelmannii v. purpureus	RP 75	USA : Utah (St. George, Washington County)
Peniocereus greggii	RP 76	USA : Arizona (Cochise County)
Mammillaria grahamii v. oliviae	RP 77	USA : New Mexico (Hidalgo County)
Mammillaria meridorosei	RP 78	USA : New Mexico (Hidalgo County)
Sclerocactus parviflorus	RP 79	USA : Utah (Lockhart Canyon, San Juan County)
Pediocactus paradinei	RP 80	USA : Arizona (Coconino County)
Escobaria missouriensis	RP 81	USA : Colorado (Montrose County)
Sclerocactus glaucus	RP 82	USA : Colorado (South-West of Delta County)
Sclerocactus glaucus	RP 83	USA : Colorado (Mesa County)
Sclerocactus glaucus	RP 84	USA : Colorado (Mesa County)
Sclerocactus wetlandicus	RP 85	USA : Utah (Uintah County)
Sclerocactus wetlandicus v. brevispinus / ilsae	RP 86	USA : Utah (Duchesne County)
Sclerocactus wrightiae	RP 87	USA : Utah (Emery County)
Echinocereus viridiflorus	RP 88	USA : New Mexico (Fort Union, Mora County)
Mammillaria meiacantha	RP 89	USA : New Mexico (Mora County)
Echinocereus triglochidiatus v. inermis	RP 90	USA : Colorado (Mesa County)
Toumeya papyracantha	RP 91	USA : New Mexico (Otero County)
Ariocarpus fissuratus	RP 92	USA : Texas (Brewster County)
Pediocactus simpsonii v. indraianus	RP 93	USA : Idaho (Salmon, Lemhi County)
Pediocactus simpsonii v. indraianus	RP 94	USA : Idaho (Central Lemhi County)
Pediocactus simpsonii v. indraianus	RP 95	USA : Idaho (Central Lemhi County)
Pediocactus simpsonii v. indraianus	RP 96	USA : Idaho (Southern Lemhi County)
Echinocereus reichenbachii v. perbellus	RP 97	USA : New Mexico (Eddy County)
Agave utahensis v. kaibabensis	RP 98	USA : Arizona (Grand Canyon area, Coconino County)
Ferocactus viridescens	RP 99	USA : California (San Diego County)
Mammillaria microcarpa ?	RP 100	USA : Arizona (Coconino County)
Pediocactus simpsonii v. simpsonii	RP 101	USA : Nevada (Pancake Range, White Pine County)
Pediocactus winkleri	RP 102	USA : Utah (Wayne County)

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