Data/hora: 08/06/2024 14:47:02

Provedor de dados: 	42	
País: 	Brazil	
Título: 	Butia capitata (Mart.) Becc. lamina anatomy as a tool for taxonomic distinction from B. odorata (Barb. Rodr.) Noblick comb. nov (Arecaceae)	
Autores: 	SANT'ANNA-SANTOS,BRUNO F.; CARVALHO JÚNIOR,WELLINGTON G.O.; AMARAL,VANESSA B.	
Data: 	2015-03-01	
Ano: 	2015	
Palavras-chave: 	Plant anatomy; Palms; Raphides; Taxonomy.	
Resumo: 	The distinction between Butia capitata and B. odorata is based only on a few morphological characteristics, therefore there is a need for additional studies for supporting the separation of the species. As lamina anatomy characteristics are relevant in circumscribing Arecaceae taxa, this work aimed to describe B. capitata lamina anatomy and compare it with B. odorata. Samples from the middle portion of the pinnae were collected and processed in accordance with standard plant anatomy techniques. The epidermis is uniseriate and composed of a thick cuticle and epicuticular waxes into like hooked filaments. The subsidiary cells that arch over the guard cells are located at the hypodermis. The mesophyll is isobilateral and compact. The vascular bundles are collateral with a sclerenchymatic sheath extension that reaches the hypodermis. The stegmata cells have spherical and druse-like silica bodies. The midrib faces the adaxial surface with a thick fibrous layer surrounding the vascular bundles adjacent to the chlorenchyma. The stratified expansion tissue is on the abaxial surface, within the boundary between the mesophyll and midrib. Raphides are only found in B. capitata. Small bundles of the midrib fully surround the fibrous cylinder only in B. odorata. These characteristics are diagnostic and useful for supporting the proposed separation.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000100071	
Editor: 	Academia Brasileira de Ciências	
Relação: 	10.1590/0001-3765201520130457	
Formato: 	text/html	
Fonte: 	Anais da Academia Brasileira de Ciências  v.87 n.1 2015	
Fonte: 	info:eu-repo/semantics/openAccess