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Piper is a large and highly diverse genus of plants with medicinal and aromatic use. It is widely distributed in tropical forests occupying distinct environments. We have determined the chemical composition of the essential oils from 11 species of Piper from seven locations of Atlantic rainforest in Brazil. The essential oils were isolated by hydrodistillation and their composition, determined by...
Passiflora contracta, a new species from coastal forests of Brazil, is described and illustrated. Based on recent collections,Passiflora hypoglauca andP. luetzelburgii, two rare and overlooked species last collected in the 19th century, have had their descriptions emended, are illustrated here for the first time, and have had their distributions expanded.
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