Data/hora: 11/06/2024 10:19:32

Provedor de dados: | 39
País: | Brazil
Título: | A study of the morphoanatomical characters of the leaves of Chamaecrista (L.) Moench sect. Apoucouita (Leguminosae-Caesalpinioideae)
Autores: | Coutinho,Ítalo Antônio Cotta; Rando,Juliana Gastaldello; Conceição,Adilva de Souza; Meira,Renata Maria Strozi Alves.
Data: | 2016-06-01
Ano: | 2016
Palavras-chave: | Amazon Rainforest; Applied botany; Atlantic Forest; Extrafloral nectaries; Papillae; Secretory idioblasts; Secretory structures; Taxonomy.
Resumo: | ABSTRACT Little attention has been paid to species of Chamaecrista sect. Apoucouita (Leguminosae-Caesalpinioideae), especially regarding anatomical studies. When only vegetative material is available, the identification of such species may be difficult. Additionally, vegetative material of some species of C. sect. Apoucouita may be even harder to identify because they can resemble species of Inga Mill. (Leguminosae-Mimosoideae). The present study focused on recognizing morphoanatomical characters of leaves that are taxonomically useful for the species of C. sect. Apoucouita by employing standard anatomical techniques. The arrangement of the vascular system in the petiole/rachis, dorsiventral mesophyll, mucilage idioblasts in the epidermis of leaflets and hypostomatic leaves were some of the characters shared by all species studied. Length of the petiole, position and type of extrafloral nectaries, leaflet venation, presence and type of papillae on the epidermis of the leaflet blades and sclereids in the mesophyll were some of the characters useful in the distinction of taxa. The vascular arrangement of the petiole/rachis is a promising character in the distinction of species of C. sect. Apoucouita and Inga. Based on morphoanatomical data, the taxonomic revision of some species and varieties ascribed to C. sect. Apoucouita is suggested.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062016000200205
Editor: | Sociedade Botânica do Brasil
Relação: | 10.1590/0102-33062016abb0035
Formato: | text/html
Fonte: | Acta Botanica Brasilica  v.30 n.2 2016
Fonte: | info:eu-repo/semantics/openAccess