scholarly journals Estudo anatômico da madeira de Vallesia glabra (Cav.) Link (Apocynaceae)

1988 ◽  
Vol 10 (10) ◽  
pp. 123
Author(s):  
Graciela Inés Bolzón Muñiz ◽  
José Newton Cardoso Marchiori
Keyword(s):  
Quantitative Data ◽  
Anatomical Structure ◽  
Axial Parenchyma ◽  
Anatomical Features ◽  
Bordered Pits ◽  
Perforation Plates

The anatomical structure of the wood of Vallesia glabra (Cav.) Link is described, based in one specimen collected in the Argentinian Province of Santiago del Estero. Quantitative data and photomicrographs of certain wood features are presented. The most importante anatomical features of the wood are the diffuse porosity, small to medium solitary pores, simple perforation plates, small and vestured intervascular bordered pits, heterogeneous rays, apotracheal axial parenchyma, fibretracheids, and rhomboid chrystals in chambered cells of rays and axial parenchyma.

scholarly journals Estudo anatômico do xilema secundário de Ephedra tweediana C. A. Meyer

1995 ◽  
Vol 17 (17) ◽  
pp. 87
Author(s):  
José Newton Cardoso Marchiori ◽  
Graciela I. Bolzon de Muñiz
Keyword(s):  
Quantitative Data ◽  
Wood Anatomy ◽  
Secondary Xylem ◽  
Xylem Anatomy ◽  
Annual Rings ◽  
Anatomical Features ◽  
Brazilian Species ◽  
Bordered Pits ◽  
Perforation Plates

The anatomical features of the secondary xylem of Ephedra tweediana C.A. Meyer are described. They are also furnished photomicrographs as well as quantitative data of its structure. The wood anatomy fits with the described in the literature to other species of the same genus. In the wood of Ephedra tweediana they are found real vessels and very tall rays, up to 8 cells wide. These features are common in the Angiosperm Dicotyledons but absent in the Gymnosperms, with the exception ofthe Chlamydospermae or Gnetales. Ephedra separates itself in this group by the presence of foraminate or "ephedroid" perforation plates. In the xylem anatomy of this south brazilian species, they must be also emphasized the presence of very short tracheids, provided with uniseriate bordered pits and the peculiar "stepped outline" of annual rings.

Estudo anatômico da madeira de Machaonia spinosa Cham & Schlecht (Rubiaceae)

1987 ◽  
Vol 9 (9) ◽  
pp. 105
Author(s):  
José Newton Cardoso Marchiori ◽  
Graciela I. Bolzón Muñiz
Keyword(s):  
Anatomical Structure ◽  
Axial Parenchyma ◽  
Strong Similarity ◽  
Bordered Pits ◽  
Wood Fibres ◽  
Perforation Plates

The general and microscopic wood features of Machaonia spinosa Cham. & Schlecht. are described. The anatomical structure shows a strong similarity with literature references to the genus Machaonia and familia Rubiaceae. Among the most important characters observed in the wood, it must be emphasized the presence of a semi-ring porosity, pores mostly in multiples, exclusively simple perforation plates in vessels, very small and vestured intervascular pits, a scarce and paratracheal axial parenchyma, heterogeneous rays with short uniseriate margins, and inconspicuous bordered pits in the septate wood fibres.

scholarly journals Anatomia da madeira de Ximenia americana L. (Olacaceae)

1988 ◽  
Vol 10 (10) ◽  
pp. 115
Author(s):  
Graciela I. Bolzón de Muñiz ◽  
José Newton Cardoso Marchiori
Keyword(s):  
Quantitative Data ◽  
Wood Anatomy ◽  
Anatomical Structure ◽  
Intermediate Position ◽  
Axial Parenchyma ◽  
Vascular Elements ◽  
Ximenia Americana ◽  
Perforation Plates

The wood anatomy of Ximenia americana L. is described, based in one specimen colected in Santiago del Estero, Argentina. Quantitative data and photomicrographs of the anatomical structure are presented. The wood has extremely numerous pores in solitary arrangement, very short to short vascular elements, exclusively simple perforation plates, apotracheal-diffuse axial parenchyma, fibrotracheids and heterogeneous - II rays. The wood anatomy of Ximenia places the genus in an intermediate position within family Olacaceae.

scholarly journals Anatomia descritiva da madeira de Myrceugenia myrtoides Berg.

1987 ◽  
Vol 9 (9) ◽  
pp. 113 ◽  
Author(s):  
José Newton Cardoso Marchiori ◽  
Graciela I. Bolzón Muñiz
Keyword(s):  
Quantitative Data ◽  
Anatomical Structure ◽  
Transversal Section ◽  
Bordered Pits ◽  
Perforation Plates

The wood of Myrceugenia myrtoides Berg is analysed in its general and microscopic aspects. Quantitative data and photomicrographs of its anatomical structure are furnished. The most important features observed in the wood are those considered as predominant in Myrtaceae according to anatomical literature. For the identification, there must be emphasized the occurrence in the wood of simple perforation plates, elongated ray-vascular pit-pairs, spiral thickenings in vessels, vestured and bordered pits in fibers, very small and solitary pores in transversal section, and rays of heterogeneous I type.

WOOD ANATOMY OF MYRCIARIA, NEOMITRANTHES, PLINIA AND SIPHONEUGENA SPECIES (MYRTEAE, MYRTACEAE)

IAWA Journal ◽  
2013 ◽  
Vol 34 (3) ◽  
pp. 313-323 ◽  
Author(s):  
Gabriel U.C.A. Santos ◽  
Cátia H. Callado ◽  
Marcelo da Costa Souza ◽  
Cecilia G. Costa
Keyword(s):  
Wood Anatomy ◽  
Growth Rings ◽  
Anatomical Features ◽  
Bordered Pits ◽  
Parenchyma Cells ◽  
Ray Parenchyma ◽  
Square Cells ◽  
Ray Parenchyma Cells ◽  
Perforation Plates ◽  
Fruit Characters

Myrciaria, Neomitranthes, Plinia and Siphoneugena are closely related genera whose circumscriptions are controversial. The distinctions between Myrciaria vs. Plinia, and Neomitranthes vs. Siphoneugena, have been based on a few fruit characters. The wood anatomy of 24 species of these genera was examined to determine if wood anatomical features could help delimit the genera. It was determined the four genera cannot reliably be separated by wood anatomy alone. Characteristics seen in all four genera are: growth rings usually poorly-defined; diffuse porous; exclusively solitary vessels, usually circular to oval in outline; simple perforation plates; vessel-ray pits alternate and distinctly bordered; fibers with distinctly bordered pits in radial and tangential walls, usually very thickwalled; vasicentric tracheids typically absent; scanty paratracheal parenchyma, sometimes unilateral, and diffuse to diffuse-in-aggregates; chambered crystalliferous axial parenchyma in many species, usually both prismatic and smaller crystals; rays 1–4-seriate, uniseriate rays composed of upright/square cells, multiseriate rays with procumbent body cells and 1 to many marginal rows of upright/square cells; disjunctive ray parenchyma cells usually present.

scholarly journals PERUBAHAN SIFAT FISIK DAN STABILITAS DIMENSI KAYU AKIBAT PENGAWETAN MENGGUNAKAN IMPREGNASI KARBONDIOKSIDA

PERENNIAL ◽  
2007 ◽  
Vol 3 (1) ◽  
pp. 6
Author(s):  
Muhammad Asdar
Keyword(s):  
Wall Thickness ◽  
Wood Anatomy ◽  
Fiber Diameter ◽  
Vessel Diameter ◽  
Anatomical Structure ◽  
Wood Identification ◽  
Axial Parenchyma ◽  
Parenchyma Cells ◽  
Thin Walled ◽  
Perforation Plates

The anatomical characteristics were studied to collect information for wood identification of Gyrinops versteegii from Gorontalo. Anatomical characterisics were determined from microtome sectioned samples and macerated samples. Observation of anatomical structure in accordance to IAWA List included vessel (diameter, height, grouping, frequention, porosity, arrangement, perforation plates, deposits, and pits), rays (type, height, width and frequention), parenchyme, and fiber (diameter, diameter of lumina and wall thickness). The research results obtained are G. versteegii has included phloem, diffuse porous, radial multiple 2-4(7), 90 µm in tangential diameter, 14 per sq.mm, simple perforation plates, intervessel pit alternate and no deposites in vessel. Rays uniseriate, heterocellular and 8,4 rays per mm. Axial parenchyma diffuse or associated with included phloem and there are fusiform parenchyma cells. Intercellular canals absent. This wood has short size and very thin walled fiber. Keywords: Agar wood, wood anatomy, included phloem, G. versteegii

scholarly journals Anatomia da madeira de Acacia plumosa Lowe (Leguminosae Mimodoideae)

1991 ◽  
Vol 13 (13) ◽  
pp. 67 ◽  
Author(s):  
José Newton Cardoso Marchiori
Keyword(s):  
Wood Anatomy ◽  
Anatomical Structure ◽  
Short Length ◽  
Axial Parenchyma ◽  
Perforation Plates

The objective of this work is to study the wood anatomy of Acacia plumosa Lowe. The anatomical structure presents semi-ring porosity, vessel members of very short to short length, simple perforation plates, intervascular pits with vestures, axial parenchyma in paratracheal vasicentric and marginal crystalliferous arrangement, homogeneous and commonly biseriate rays, and septate libriform fibres. The presence of intercellular axial channels and cellular channels in the ray structure are of great taxonomic value. The late feature was unknown to the genus Acacia. The wood anatomy indicates that the species studied can be, classified in the series Vulgares Bentham, which corresponds, in general lines, to the sub-genus Aculeiferum of the Vassal's system.

Wood and Stem Anatomy of Petiveria and Rivina (Caryophyllales); Systematic Implications

IAWA Journal ◽  
1998 ◽  
Vol 19 (4) ◽  
pp. 383-391 ◽  
Author(s):  
Sherwin Carlquist
Keyword(s):  
Starch Content ◽  
Secondary Phloem ◽  
Stem Anatomy ◽  
Axial Parenchyma ◽  
Vessel Morphology ◽  
Bordered Pits ◽  
Ray Cells ◽  
Perforation Plates ◽  
Type Fiber

Petiveria and Rivina have been placed by various authors close to each other within Phytolaccaceae; widely separated from each other but both within Phytolaccaceae; and within a segregate family (Rivinaceae) but still within the order Caryophyllales. Wood of these monotypic genera proves to be alike in salient qualitative and even quantitative features, including presence of a second cambium, vessel morphology and pit size, nonbordered perforation plates, vasicentric axial parenchyma type, fiber-tracheids with vestigially bordered pits and starch contents, narrow multiseriate rays plus a few uniseriate rays, ray cells predominantly upright and with thin lignified walls and starch content, and presence of both large styloids and packets of coarse raphides in secondary phloem. Although further data are desirable, wood and stern data do not strongly support separation of Petiveria and Rivina from Phytolaccaceae. Quantitative wood features correspond to the short-lived perennial habit ofboth genera, and are indicative ofaxeromorphic wood pattern.

scholarly journals Comparative wood anatomy of Korean Viburnum L. (Adoxaceae) and its taxonomic implication

PhytoKeys ◽  
2020 ◽  
Vol 156 ◽  
pp. 27-46
Author(s):  
Balkrishna Ghimire ◽  
Dong Chan Son ◽  
Beom Kyun Park ◽  
Seung-Hwan Oh
Keyword(s):  
Light Microscopy ◽  
Cross Section ◽  
Wood Anatomy ◽  
Quantitative Measurement ◽  
Tangential Plane ◽  
Growth Rings ◽  
Axial Parenchyma ◽  
Bordered Pits ◽  
Perforation Plates ◽  
Comparative Wood Anatomy

Comparative wood anatomy of Viburnum was carried out to understand the differences in wood features amongst the species which might be useful for taxonomic discrimination in the genus. Altogether, nine taxa belonging to five clades were investigated using a sliding microtome and light microscopy. The growth rings are well represented and earlywood and latewood are distinguishable in cross-section. Some of the important wood features include angular, oval and rounded vessels with scalariform perforation plates, opposite to scalariform inter-vessel pitting, rounded pits with slit-like apertures, thick-walled xylem tracheids with simple, rounded bordered pits, diffuse axial parenchyma, uni- and multiseriate rays, 2–4 cells wide. In general, there is a remarkable uniformity in the qualitative wood features in Viburnum species, although quantitative measurement showed some disparities. The most significant quantitative wood variables which might be useful for taxonomic groupings of the species comprise a frequency of vessels and rays, the diameter of the vessels and tracheids in the radial and tangential planes and height and width of rays in the tangential plane.

A new Cretaceous record of Platanoxylon (Platanaceae): the first Mesozoic angiosperm wood from China

IAWA Journal ◽  
2020 ◽  
pp. 1-12
Author(s):  
Ye-Ming Cheng ◽  
Feng-Xiang Liu ◽  
Yue-Gao Jin ◽  
Tong-Xing Sun
Keyword(s):  
Northeast China ◽  
New Record ◽  
Northern China ◽  
First Record ◽  
Heilongjiang Province ◽  
Growth Rings ◽  
Axial Parenchyma ◽  
Bordered Pits ◽  
Ray Cells ◽  
Perforation Plates

Abstract A new record of Cretaceous platanaceous wood, Platanoxylon sp., is described from Keshan, Heilongjiang Province, Northeast China. The features indicating it belongs to Platanoxylon include: growth rings distinct, wood diffuse-porous, vessels numerous, solitary and in short radial or tangential multiples, perforation plates exclusively scalariform, intervessel pits opposite, elliptical, horizontally elongated, vessel-ray pits similar to intervessel pits, some fibers with distinctly bordered pits, axial parenchyma diffuse, rays mostly large homocellular multiseriate, rarely uniseriate, and crystals often in ray cells. Fossil platanaceous woods are common in the Northern Hemisphere. Yet, Platanoxylon sp. is China’s first report of fossil Platanaceae wood. It is also China’s first record of Cretaceous angiosperm wood. This wood and compression floras indicate that the Platanaceae were in northern China from the Late Cretaceous to the Eocene.

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