scholarly journals Estudo anatômico do xilema secundário de Cassia corymbosa Lam. (Leguminosae Caesalpinioideae)

1983 ◽  
Vol 5 (5) ◽  
pp. 179
Author(s):  
José Newton Cardoso Marchiori

 This paper describes the wood anatomy of Cassia corymbosa Lam. (Leguminosae Caesalpinioideae), a small ornamental shrub with yellow flowers, commonly named int the State of Rio Grande do Sul as "Fedegoso".The most important anatomical characteristics observed was the presence of short vessel elements with small diameter and simple perforation plates, rays of Heterogeneous II type, libriform non-septate fibers, and scanty paratracheal axial parenchyma axial parencgyma.

1983 ◽  
Vol 5 (5) ◽  
pp. 161
Author(s):  
José Newton Cardoso Marchiori

This paper deals with the description of general, macroscopic and microscopic anatomy of Colletia paradoxa (Spreng.) Escalante, an aphyllous and xerophilous shrub from Rio Grande do Sul (Brazil). Pores of very small diameter, very short vessel elements, spiral thickenings and simple perforation plates in vessels, non sptate libriform fibers, scanty paratracheal axial paranchyma, and Heterogeneous II rays were observed in the wood.. Perforated cells are also common in rays. The presence of perforated ray cells and anatomical features of the vessel elements are discussed with respect to eco-physiological aspect of the plant and wood anatomy literature.


1983 ◽  
Vol 5 (5) ◽  
pp. 153
Author(s):  
José Newton Cardoso Marchiori

This study describes the general, macroscopic and microscopic anatomical structure of the called "Maria-Preta" (Maba inconstans (Jacq.) Gris.), a native tree to the State of Rio Grande do Sul, Brazil. The wood anatomy of this species is compared with the usual literature for this botanical family. It was found a great similarity between the wood of Maba inconstans and the xylology of the genus Diospyros.


CERNE ◽  
2016 ◽  
Vol 22 (3) ◽  
pp. 261-270 ◽  
Author(s):  
Claúdia Luizon Dias Leme

ABSTRACT Different medicinal plant species can be sold under the same common name. Considering the importance of the correct identification, this study aims to separate, using wood anatomy, seven species popularly known as pau-para-tudo. The results show that Drimys brasiliensis is separated from the others by the presence of tracheids. Capsicodendron dinisii hhas scalariform perforation plates and oil cells associated with the axial parenchyma. Axial parenchyma paratracheal vasicentric and in marginal bands beyond the rays' width, can separate Osteophoeum platyspermum from Simaba cedron. Handroanthus serratifolius has the unique presence of the axial unilateral paratracheal parenchyma and storied cell elements (parenchyma, fibers and vessel elements). Rauvolfia sellowii and Leptolobium dasycarpum can be separated by the number of square/upright marginal ray cells, greater in Rauvolfia sellowii. Thus, this work shows that wood anatomy is a valuable tool for species separation, helps with the identification and consequently is important for the quality control of plant product.


IAWA Journal ◽  
1988 ◽  
Vol 9 (4) ◽  
pp. 332-336 ◽  
Author(s):  
William C. Dickison

The first description of the wood of the monotypic Madagascan genus Diegodendron is provided. The xylem of D. humbertii is characterised by short , solitary vessel elements with alternate lateral wall pitting and simple perforation plates, imperforate tracheary elements of the libriform fibre type, nearly all biseriate, imperfectly storied, homogeneous rays composed of procumbent cells only, and diffuse and diffuse-in-aggregates axial parenchyma. The specialised wood anatomy of Diegodendron supports a close alliance with both Sphaerosepalaceae and Malvales.


IAWA Journal ◽  
1993 ◽  
Vol 14 (2) ◽  
pp. 205-213 ◽  
Author(s):  
W. John Hayden ◽  
Mark P. Simmons ◽  
Linda J. Swanson

Wood anatomy of 29 specimens of seven species of Amanoa from tropieal Africa, South America, and the Caribbean is described. The wood is diffuse-porous with most vessels in short radial multiples. Vessel elements are notably long, have simple perforation plates and smalI, alternate intervessel pits; tyloses are present in heartwood. Libriform wood fibres bear thick walls. Axial parenchyma distribution is diffuse and diffuse-in-aggregates. Chambered crystalliferous axial parenchyma is common. Rays are heterocellular, narrow, and very tal!. The species examined, all from moist lowland forests, have similar wood structure. Wood of Amanoa resembles that of other primitive Euphorbiaceae.


2017 ◽  
pp. 53
Author(s):  
Jacqueline Ceja-Romero ◽  
Carmen de la Paz Pérez-Olvera ◽  
Jesús Rivera-Tapia

The wood anatomy of Salvia pubescens, S. regla, and S. sessei is described. These species are included within the section Erythrostachys, subgenus Calosphace, genus Salvia. Two samples were collected for each species to obtain permanent slides. Transverse, radial and tangential sections were used to describe the anatomy of each taxon. The wood has ring porosity, the tangential vessel diameter is small (34-85 μm), the vessel elements are short (94-257 μm) with alternate pitting, helical thickenings and simple perforation plates. Vasicentric tracheids are present. Axial parenchyma is paratracheal scanty, apotracheal diffuse, and marginal. Rays are uniseriate and multiseriate, heterogeneous, aggregate and non aggregate. Libriform fibers are septate and non septate. Gums, tyloses, starch grains and prismatic crystals were observed. These features agree with previous reports for the genus.


1993 ◽  
Vol 15 (15) ◽  
pp. 149 ◽  
Author(s):  
José Newton Cardoso Marchiori

This paper deals with the description of the general, macroscopic and microscopic features of the wood of Acacia ibirocayensis Marchiori, a small shrub native on rocky hills of the Ibirocay river region, southwestern of Rio Grande do Sul State, Brazil. The anatomical structure showed very short vascular elements, exclusively simple perforation plates, alternate and vestured intervascular pits, paratracheal irregularly-banded axial parenchyma, homogeneous rays and libriform non-septated fibres. The wood is analysed, being considered some anatomical charactes of taxonomic, phylogenetic and ecophysiological value.


1985 ◽  
Vol 7 (7) ◽  
pp. 83
Author(s):  
José Newton Cardoso Marchiori

This paper presents the wood anatomy description of Prosopis algarobilla Gris. and Prosopis nigra (Gris.) Hieron. The wood structure of these species is compared with the anatomical literature concerned to the genus Prosopis. The most important anatomical differences, were observed in vessel volume fraction, axial parenchyma volume fraction and width of rays in number of cells.


IAWA Journal ◽  
2010 ◽  
Vol 31 (4) ◽  
pp. 399-423 ◽  
Author(s):  
Elisabeth A. Wheeler ◽  
Sung Jae Lee ◽  
Pieter Baas

Wood anatomical data for all three extant genera of the Altingiaceae and 23 of the 27 extant genera of the Hamamelidaceae were compiled in an effort to find features distinctive to genera, tribes, or subfamilies within these families. All genera studied have diffuse porous wood (except Corylopsis which tends to be semi-ring porous), vessels are predominantly solitary and narrow (<100 μm, usually <50 μm) and angular in outline, vessel elements are long (>800 μm) with scalariform perforation plates with average bar numbers of 9–44, intervessel pits are mainly scalariform to opposite, vessel-ray parenchyma pits are scalariform with slightly reduced borders and usually are in the square to upright marginal ray parenchyma cells, rays are heterocellular and narrow, usually 1–3-seriate. Although the wood anatomy of both families is relatively homogeneous, it is possible to key out many genera using a combination of qualitative (presence/absence and location of helical thickenings in vessel elements and fibers, crystal occurrence, axial parenchyma abundance, degree of ray heterogeneity) and quantitative features (number of bars per perforation plate and ray width). Helical thickenings are present throughout the vessel elements in three genera (Loropetalum, Altingia, Semiliquidambar) and are restricted to the vessel element tails in two genera (Corylopsis, Liquidambar). Loropetalum has helical thickenings in ground tissue fibers as well. Axial parenchyma abundance varies from scarce to relatively abundant diffuse to diffuse-in-aggregates. One clade of the tribe Fothergilleae (Distylium, Distyliopsis, Sycopsis, Shaniodendron, Parrotia, Parrotiopsis) has more abundant axial parenchyma and is characterized by narrow, usually interrupted bands of apotracheal parenchyma. Nearly exclusively uniseriate rays occur in some species of Hamamelis and in Exbucklandia, Chunia, Dicoryphe, and Fothergilla. These data on extant Altingiaceae and Hamamelidaceae not only provide information relevant for systematic, phylogenetic and ecological wood anatomy and wood identification, but also give context for reviewing the fossil woods assigned to them. A new combination is proposed for the Miocene Liquidambar hisauchii (Watari) Suzuki & Watari from Japan: Altingia hisauchii (Watari) Wheeler, Baas & Lee.


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