Haseltonia，美國仙人掌和多肉動物協(xié)會年鑒，以全彩出版，并以同行評議的文章為特色，內(nèi)容涉及仙人掌、多肉動物及其環(huán)境的各個方面。主題包括當前的研究和保護報告，新物種描述和漫長的分類修訂，歷史和傳記筆記，化學和細胞學研究，進化生物學和人種植物學報告，繁殖和害蟲控制方法，傳粉者研究。認真研究世界多肉植物的學生、植物學家、分類學家、研究人員和園藝學家都將發(fā)現(xiàn)，哈澤爾托尼亞對他們的藏書來說是一個有價值的補充。

Haseltonia, Yearbook of the Cactus and Succulent Society of America, is published in full color and features peer-reviewed articles about all aspects of cacti, succulents and their environs. Topics include current research and conservation reports, new species descriptions and lengthy taxonomic revisions, historical and biographical notes, chemical and cytological studies, evolutionary biology and ethnobotanical reports, propagation and pest control methods, and pollinator studies. Serious students of the world's succulent flora, botanists, taxonomists, researchers and horticulturalists will all find Haseltonia a valuable addition to their book collection.