Data/hora: 02/06/2024 10:20:28

Provedor de dados: | 49
País: | Brazil
Título: | Leaf Morphoanatomy of Diploon Cronquist (Sapotaceae Juss.)
Autores: | Lima,Renata Gabriela Vila Nova de; Lima,Liliane Ferreira; Ferreira,Angélica Cândida; Araújo,Josiane Silva; Zickel,Carmen Silvia.
Data: | 2019-01-01
Ano: | 2019
Palavras-chave: | Leaf anatomy; Leaf architecture; Micromorphology; Taxonomy; Chrysophylloideae.
Resumo: | Abstract: Diploon is a monospecific genus represented by Diploon cuspidatum, an arboreal species that has morphological characteristics distinct from those of other Sapotaceae species. In this study, Diploon cuspidatum leaves were characterized morphoanatomically in order to reveal additional diagnostic characters of their external morphology of the genus. The Diploon petiole presents shape and arrangement of the vascular system flat-convex, occasionally with one or two accessory bundles, many laticifers, and many prismatic crystals. The midrib is biconvex with a U-shaped cuticle on the abaxial side, and laticifers are associated with the vascular tissues. Mesophyll is dorsiventral, palisade parenchyma has two cell layers, T- and Y-shaped malpighiaceous trichomes are on the abaxial epidermis with a small stalk cell and long arm. The venation pattern is brochidodromous. Intersecondary veins run parallel to the secondary veins, and quaternary veins branch freely. Higher order veins are not present. Morphoanatomical analysis revealed important characteristics that reveal a set of structures common to Sapotaceae, in addition to characters that are important for the recognition and identification of D. cuspidatum.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000100202
Editor: | Instituto Virtual da Biodiversidade | BIOTA - FAPESP
Relação: | 10.1590/1676-0611-bn-2018-0600
Formato: | text/html
Fonte: | Biota Neotropica  v.19 n.1 2019
Fonte: | info:eu-repo/semantics/openAccess