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| | American Journal of Botany, 47, 7, July, 1960 (Site not responding. Last check: 2007-10-18) |
 | | The Status of the Proposed Genus Roseocactus, 582-589 |
 | | Abstract: The proposed genus Roseocactus Berger is found to be a subgenus of Ariocarpus. |
 | | The subgenera Ariocarpus and Roseocactus are basically similar in habitat, seedlings, presence of mucilage systems, tubercle structure, seed structure, fruiting habit, flower origin and structure, alkaloidal properties, trichomes, pollen grains, and chromosome number. |
| www.botany.org /ajb/00029122_di001584.php (1993 words) |
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