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| Santos,Mirane de Oliveira; Lima,Luciene Cristina Lima e; Sales,Margareth Ferreira de; Silva,Juliana Santos. |
| ABSTRACT Bernardia and Tragia are the largest genera of the tribes Bernardieae and Plukenetieae (Euphorbiaceae,), with 68 and 125 species, respectively. Very few palynological studies have focused specifically on these genera in spite of the great pollen diversity observed in the family. The present study analyzed the pollen morphology of the Brazilian species of Bernardia and Tragia to identify diagnostic characteristics that could aid in their taxonomic circumscription. The pollen grains of 11 species of Bernardia and five of Tragia were obtained from specimens deposited in the HRB, HUEFS, PEUFR, RB and UFP herbaria, and were analyzed using light and scanning electron microscopy. The analyzed species had small- to medium-sized pollen grains in monads,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bernardieae; Pollen grains; Plukenetieae; Plant taxonomy; Tragiinae. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062019000300474 |
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| Santos,Mirane de Oliveira; Cordeiro,Wesley Patrício Freire de Sá; Sales,Margareth Ferreira de; Silva,Juliana Santos. |
| Abstract: Bernardia and Tragia are genera of the subfamily Acalyphoideae, with species occurring in tropical and subtropical regions. Studies concerning those genera are scarce in Brazil, including Northeastern Brazil. The present study was designed to study the taxonomy of species occurring there, and provides illustrations, keys, descriptions, and comments concerning taxonomic affinities, as well as information concerning their geographic distributions and environmental preferences. A total of 13 species were encountered, eight of Bernardia and five of Tragia. Of those, B. hamadryadica and T. cearensis are endemic to Northeastern Brazil and B. celastrinea, B. pulchella, and T. chlorocaulon are new records for the region. The two genera occur in moist... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bernardieae; Floristic; New occurrences; Plukenetieae; Tragiinae. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000300301 |
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