Media type: E-Article Title: White-spined discocacti from the Brazilian state of Bahia Contributor: Hofacker, Andreas; Bohle, Bernhard; Van Heek, Werner imprint: British Cactus and Succulent Society, 2002 Published in: British Cactus & Succulent Journal Language: English ISSN: 0264-3405; 2057-0937 Origination: Footnote: