ALL who grow Cacti will be glad to learn that the third volume of this fine work has been issued. It will probably appeal to a larger number ofj Cactus fanciers than the two preceding volumes/ because ...

Aztekium and Strombocactus, monotypic genera of Mexican cacti, have been considered to be congeneric. Studies in the field and laboratory dealt with habitat, distribution, flowers, fruits, outer cell ...

CITES Cactaceae checklist / compiled by David Hunt ; assisted by members of the International Organization for Succulent Plant Study (IOS) ...

THE issue of the fourth volume of “The Cactaceæ” brings this sumptuous monograph of the family to a conclusion. Previous volumes have been discussed in NATURE, vol. 107, p. 580, and vol. in, p. 426.