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January, 1954 JOURNAL OF GREAT BRITAIN
Cephalocereus apicicephalium (centre)
Escontria chiotilla (right) Howard E. Gates
Cepha/ocereus
mezcalaensis Cephalocereus
tetetzo
(Acatlan de Osorio, Puebla) Howard E. Gates (Totolapan, Oaxaca) Howard E. Gates
Digital library of cactus and succulent plant lecture,
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