54 



STANDARDIZED PLANT NAMES 



Cactus, continued 



Sevenstars Ariocarpus prismaticus 

 Snowball C. Pediocactus simpsoni 



Star C Astrophytum 



TuRKscAP Cactus 



Common T. C. melocact xs 



Velvet C. . Bergerocactus emoryi 

 Walkingstick C. 



Opuntia imbricata 

 Water C. 



Arizona Water C. 



Ferocactus wislizeni 

 SoNORA Water C. . F. covillei 

 Cactus Dahlia . . . Dahlia juarezi 

 CACTUS GENERA 



For convenience of reference the genera 

 and species of Cactus are la ere brought 

 together in one consolidated list. 



ACANTHOCEREUS 



pentagonus {Cereus haxaniensis) 

 ANHALONIUM ARIOCARPUS 



lewini . . Lophophora williamsi 



williamsi L. williamsi 



APOROCACTUS 



conzatti 



flagelliformis {Cereus flagelliformis) 

 Rattail Cactus 



martianus (Cereus martianus Cy) 



ARIOCARPUS . . Living-rock 

 fissuratus {Anhalonium fissuratum; 



An. engelmanni) . Living-rock 

 kotschoubeyanus (An. kotschou- 



beyaninn; An. sulcatum) 

 lloydi 

 prismaticus {Anhalonium -prismati- 



cum) Sevenstars 



retusus {An. retusum) 



COBBLERSTHUMB 



ASTROPHYTUM Star Cactus 

 capricornis {Echinocactus capri- 



corjiis Cy) 

 myriostigma {Echinocactus myrio- 



stigma Cy) . . . Bishopshood 

 omatum {E. ornatus Cv) 



BERGEROCACTUS ^ 

 emoryi {Cereus emoryi) 



Velvet Cactus 



CACTUS TuRKSCAP 



melocactus {Melocactus communis) 

 Common Turkscap 



CACTUS GENERA, continued 



CARNEGIEA . Giant Cactus 

 gigantea {Cereus giganteus) 



Giant C. 



CEPHALOCEREUS 

 chrysomallus 



Pachycereus chrysomallus 

 euphorbioides {Cereus euphorbioi- 



des Cy; C. olfersi) 

 polylophus (C. nickelsi) 

 senilis {Pilocereus senilis) 



CEREUS Oldman Cactus 



aethiops {coerulescens; C. caeru 



lescens Cy) 

 alacriportanus 



alamosensis Rathbunia alamosensis 

 amecamensis 



Heliocereus amecamensis 

 atropurpureus . Harrisia tortuosa 

 azureus 



haumanni Cleistocactus baumanni 

 haxaniensis 



Acanthocereus pentagonus 

 bonplandi Cy . Harrisia bonplandi 

 caerulescens Cy . Cereus aethiops 

 calcaratus . Hylocereus calcaratus 

 candicans Cy 



Trichocereus candicans 



The name C. candicans is often misap- 

 plied to Echinocereus rigidissim'-s. 



chiotilla .... Escontria chiotilla 

 coccineus . Heliocereus speciosus 

 coeridescens . . Cereus aethiops 

 colubrinus . Monvillea cavendishi 

 costaricensis 



Hylocereus costaricensis 

 donkelaari Selenicereus donkelaari 

 dumortieri 



Lemaireocereus dumortieri 



eburneus L. eburneus 



emoryi . . Bergerocactus emoryi 

 eriophorus . . Harrisia eriophora 

 eruca . . Machaerocereus eruca 

 euphorbioides Cy 



Cephalocereus euphorbioides 

 flageUiJormis 



Aporecactus flagelliformis 



forbesi Cereus validus 



gemmatus 



Myrtillocactus geometrizans 



BOLD-face^approved scientific names. JTAZic^synonyms or unapproved names. 



