CSSA VOL.69 JULY-AUGUST, 1997 No.4 Twenty Deserving Mammillarias Bill Maddams Mammillaria amajacensis, a new species from Hidalgo, Mexico Christian Brachet & Michel Lacoste Fieldnotes. Mammillaria tezontle - a long-term study W. A. & Betty Fitz Maurice The Odder Mammillarias John Pilbeam A commentary on Mammillaria sartorii and M.eriacantha Miguel J. Cházaro, Raul Acevedo & Burl L. Mostul A new conophytum from the north-east Richtersveld G. Williamson & H. C. Kennedy Valley View Succulent Notes Gerald S. Barad, MD Cacti & Succulents for the Amateur Duke Benadom Spotlight on Round Robins Braden Engelke & Rita Fleischmann

Cover illustration: Mammillaria gigantea, from Mexico, is one of the most variable of mammillarias, its spines varying in number, length and color, while the flowers may range from pink to yellow. Our cover photo is of a short-spined, yellow-flowered form grown by Wendell (Woody) Minnich of Little Rock, California. We like this photo by John N. Trager because of its off-center orientation and because it depicts so many of the attractive features of the genus.