Escobaria sandbergii Castetter et al. ..................................................................................................... 88 Escobaria sneedii Britton & Rose ssp. sneedii ..................................................................................... 90 Escobaria sneedii ssp. leei (Rose ex Boedeker) Hunt .......................................................................... 94 Escobaria tuberculosa (Engelmann) Britton & Rose ........................................................................... 96 Escobaria villardii (Zimmerman) Castetter et al. ................................................................................. 98 Escobaria vivipara (Nuttall) Buxbaum ssp. vivipara ......................................................................... 100 Escobaria vivipara ssp. kaibabensis (Taylor) Hochstätter Comb. et stat. nov. ................................. 111 Escobaria vivipara ssp. rosea (Hunt) Hochstätter Comb. et stat. nov. .............................................. 113 Escobaria zilziana (Boedeker) Backeberg .......................................................................................... 116 Literatur ................................................................................................................................................. 118 Herbarien Abkürzung ............................................................................................................................ 119 Glossary ................................................................................................................................................. 120 Autor ...................................................................................................................................................... 135 Dank ....................................................................................................................................................... 136
Cover: Escobaria vivipara ssp. rosea Am Standort in Arizona.
4