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Flora and Fauna

• 4861
• Opuntia dillenii
• Photograph of a fine plant in Tenerife, laden with fruit.

• 4862
• Opuntia fragilis
• General information and classification.

• 4863
• Opuntia humifusa
• Species summary from the USDA Forest Service.

• 4864
• Opuntia leptocaulis
• Photograph and description of the Desert Christmas Cactus and information on its habitat and range.

• 4865
• Opuntia leptocaulis - Desert Christmas Cactus
• Images from Arizona.

• 4866
• Opuntia microdasys
• General information and classification.

• 4867
• Opuntia phaeacantha - Desert Prickly Pear
• Images from Arizona.

• 4868
• Opuntia polycantha
• Species summary from the USDA Forest Service.

• 4869
• Opuntia stricta
• Taxonomy, description and photograph of this prickly pear growing in Florida.

• 4870
• Opuntia viridiflora - Santa Fe Cholla
• Description, image, and range of this rare plant in New Mexico.

• 4871
• Obregonia denegrii
• General information and classification.

• 4872
• Notocactus Information Exchange
• Detailed information on all species.

• 4873
• Notocactus magnificus
• General information and classification.

• 4874
• Notocactus ottonis
• General information and classification.

• 4875
• Neoporteria Species
• Images of two plants in Chile.

• 4876
• Neolloydia....Who?
• Detailed article covering all the recognized species by Andy T. Powell.

• 4877
• Cacti in Mexico: Mammillaria
• Images of four species.

• 4878
• Mammillaria Society
• Promotes the study of the cactus genus Mammillaria, and also Coryphantha and allied genera such as Escobaria, Thelocactus, Gymnocactus, and Neolloydia.

• 4879
• Mammillarias.net
• Forum, photo gallery, and collection database. [French and English]

• 4880
• Lophocereus schottii
• Article by Joe Zentner on the Organ Pipe Cactus National Monument and the Senita Cactus that grows there.