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Echeveria michihuacana (Crassulaceae), a new species for science, is described and illustrated. The new taxon is related to a group of species of Echeveria series Gibbiflorae from western Mexico, including Echeveria dactylifera, Echeveria fulgens, Echeveria patriotica, and particularly the recently published Echeveria pistioides. With the last species, E. michihuacana is similar in the shape and coloration...
Recent collections of Ceratozamia from the Sierra Norte of Puebla, Mexico, point to a new undescribed species, which was previously subsumed under the concept of C. mexicana. Identification of this new species resulted from a review of three associated species: C. mexicana, C. tenuis, and C. delucana. Here we describe Ceratozamia totonacorum and provide information regarding its distribution and natural...
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