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Based on morphological and molecular analysis, we describe the new species Geastrum verrucoramulosum, discriminated from other species in the section Exareolata mainly by an elongated, verrucose, branched stipe. This new species is currently known from two forest locations in central and southwestern Amazonia. Species description, images, and taxonomic discussion of both morphological and molecular...
The Domestication of Annatto (Bixa orellana) fromBixa urucuranain Amazonia. Annatto (Bixa orellana) is an important colorant domesticated in the Neotropics, although it is not clear where or from which wild populations. We reviewed the available biological, archaeological, and ethnographic information about annatto, and integrated this with our recent ethnobotanical observations of cultivated...
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