Results 141 to 150 of about 1,217 (174)

Cambial Variant in the Stem of Serjania Corrugata (Sapindaceae)

IAWA Journal, 2006
The establishment of the cambial variant and the development of the stem of Serjania corrugata Radlk. (Sapindaceae) was analyzed. In the early stages of development, the stem is lobed, with five lobes and five furrows in cross section. Around the fourth internode, each lobe has a vascular arc with one or two more developed central vascular bundles, two
Gabriel U.C. Araújo, Cecilia G. Costa
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An eocene fossil tree with cambial variant wood structure

Review of Palaeobotany and Palynology, 1991
Abstract Fossil wood with “anomalous structure” is reported from the Eocene of Louisiana and Texas. Superficially the wood appears to have diffuse (foraminate) included phloem, but what appear to be bundles of included phloem are bundles of parenchyma surrounding structures that resemble traumatic canals.
F.M. Hueber, E.M.V. Nambudiri, W.D. Tidwell, E.F. Wheeler   +3 more
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The rise and evolution of the cambial variant in Bignonieae (Bignoniaceae)

Evolution & Development, 2009
SUMMARYCambial variants represent a form of secondary growth that creates great stem anatomical diversity in lianas. Despite the importance of cambial variants, nothing is known about the developmental mechanisms that may have led to the current diversity seen in these stems.
Pace, M, Lohmann, LG, Angyalossy, V
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Development of Cambial Variant in Sesuvium portulacastrum L. (aizoaceae)

The Journal of the Torrey Botanical Society, 2008
Abstract Stems in Sesuvium portulacastrum L. (Aizoaceae) increase in thickness by forming successive rings of cambia that formed concentric rings of xylem alternating with phloem. The cambium is semi-storied and exclusively composed of vertically elongated fusiform initials while cambial rays were absent in the early part of the secondary growth.
Kishore S. Rajput, Vidya S. Patil
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CAMBIAL VARIANT AND XYLEM STRUCTURE IN THE STEM OF COCCULUS HIRSUTUS (MENISPERMACEAE)

IAWA Journal, 2003
Development of cambial variant and xylem structure were studied in the stem of Cocculus hirsutus (Menispermaceae). In the early stages of stem development several collateral vascular bundles are joined by interfascicular cambium resulting in the formation of a complete cambial cylinder.
Kishore S. Rajput, K.S. Rao
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Structure of Wood and Cambial Variant in the Stem of Dalbergia Paniculata Roxb.

IAWA Journal, 1990
The wood of Dalbergia paniculata is unique as it consists of concentric layers of broad xylem, alternating with bands of narrow phloem. This anomaly results from the periodic formation of successive cambia in the secondary phloem. Some phloem parenchyma cells dedifferentiate to form a discontinuous ring of cambium.
M. N. B. Nair, H. Y. Mohan Ram
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Cambial variants in the roots of Glinus lotoides L. and G. oppositifolius (L.) A. DC. (Molluginaceae)

Acta Botanica Hungarica, 2003
Structure and development of successive cambia and their derivatives are studied histologically in the root of two species of Glinus (Molluginaceae). In both species first ring of cambium functions for a short time followed by the development of second ring from the cortical parenchyma.
Rao, K. S., Rajput, K. S.
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Structure of Stem and Cambial Variant in Spatholobus Roxburgii (Leguminosae)

IAWA Journal, 1993
The stern of Spatholobus roxburghii, a tropicalliana, has alternating layers of xylem and phloem as a result of formation and activity of successive cambia. Successive cambial rings are developed by dedifferentiation of groups of parenchyma cells outside the discontinuous band of sclereid-fibres. The sclereid- fibre band is formed by the development of
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Cambial Variants (Anomalous Secondary Growth)

1988
“Anomalous secondary growth” is the term under which have been grouped cambial conformations, cambial products, and cambial numbers which differ from the most common “normal” condition, namely, a single cylindrical cambium that produces phloem externally and xylem internally. The term “variants” is employed here as a way of referring to the less common
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Wood, stem, and root anatomy of Basellaceae with relation to habit, systematics, and cambial variants

Flora, 1999
Summary Wood data from wider stem, root, and root-stem transition of a mature plant of Anredera baselloides are analyzed for quantitative and qualitative features. Distinctive characters of A. baselloides include presence of successive cambia in wider stem, root, and root-stem transition; other types of cambial variants are newly reported for the
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