A Phylogeny of the Tropical Genus Piper Using Its and the Chloroplast Intron psbJ–petA

Piper is one of the largest genera of flowering plants. The uniformity of its small flowers and the vast number of species in the genus has hindered the development of a stable infrageneric classification. We sampled 575 accessions corresponding to 332 species of Piper for the ITS region and 181 acc...

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