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| PINHEIRO,CARLOS G.; OLIVEIRA,JOÃO MARCELO S. DE; HEINZMANN,BERTA M.. |
| Abstract The aim of this study was to describe the structural characterization of Hesperozygis ringens (Benth.) Epling vegetative organs. For this purpose, leaves, stems and roots of the endangered Lamiaceae were collected from a population located in Santo Antão, Santa Maria municipality, Rio Grande do Sul, Brazil. Results demonstrated that the H. ringens leaf blade presents glandular and non-glandular trichomes as well as two morphs of diallelocytic stomata, which are usually found above the epidermis level. The petiole is concave on ventral face and convex on its dorsal face, containing glandular and non-glandular trichomes as well as stomata in the epidermis. These types of trichomes were also detected in the stem. In addition, the presence of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lamiaceae; Leaf blade; Petiole; Root; Stem. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000602887 |
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| Souza,L. A.; Moscheta,I. S.; Oliveira,J. H. G.. |
| The genera and species of Piperaceae show a considerable structural diversity of leaves and especially stems. This paper presents a comparative morphological and anatomical study of the leaves and stems of three common Brazilian species of this family (Peperomia dahlstedtii C.DC., Ottonia martiana Miq. and Piper diospyrifolium Kunth), the vegetative organs of which have previously been little studied. The collected plant material was fixed in FAA, cut freehand and stained in safranin and astra blue. P. dahlstedtii is an epiphyte and has a herbaceous stem with whorled leaves phyllotaxis and a polystelic structure, a multiseriate adaxial leaf epidermis and calcium oxalate monocrystals in parenchyma and collenchyma petiole cells. O. martiana and P.... |
| Tipo: Journal article |
Palavras-chave: Crystal cells; Epidermis; Stele; Petiole. |
| Ano: 2004 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432004000100002 |
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| ÖZDEMIR,A.; ÖZDEMIR,A.Y.; YETISEN,K.. |
| ABSTRACT In this study, petiol anatomy of 17 Salvia sp. taxa were compared statistically. In all the studied taxa, some differences were found in the petiole shape, number of vascular bundles and the presence of chlorenchyma. Anatomical variations in 17 Salvia taxa have been investigated by means of numerical methods (Analysis of variance and Pearson correlation). By the analysis of the investigated taxa from 17 leaf anatomy related characters, it has been determined that epidermis width and trachea diameter are the best character pairs which represent the variations in them. It has been also found that the results from numerical analysis of the leaf anatomy characters can provide additional evidences that correspond to the anatomy for the recognition of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anatomy; Lamiaceae; Petiole; Salvia; Statistical analysis. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-83582016000300465 |
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