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1 June 2011 A New Species of Pera (Euphorbiaceae) from Amazonian Brazil
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Abstract

A new species of Euphorbiaceae from the Brazilian Amazon, Pera eiteniorum Bigio & Secco, is described and illustrated. This species is closely related to P. tomentosa (Benth.) Müll. Arg., P. membranacea Leal, and P. heteranthera (Schrank) I. M. Johnst., but can be distinguished from them by the following characteristics: the abaxial leaf surface with stellate trichomes and the blade midvein with stellate-lepidote trichomes, staminate flowers with the calyx glabrous or rarely with sparse, sericeous trichomes, and a well-developed rudimentary pistillate flower with a lageniform (flask-shaped) ovary, triangular stigma, and narrowly oblanceolate staminode. Affinities of the new taxon are discussed, and a key to morphologically similar species from Amazonian Brazil is presented.

Narcísio Costa Bigio and Ricardo de S Secco "A New Species of Pera (Euphorbiaceae) from Amazonian Brazil," Novon: A Journal for Botanical Nomenclature 21(2), 169-173, (1 June 2011). https://doi.org/10.3417/2009089
Published: 1 June 2011
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