Results 311 to 320 of about 107,474 (351)

Leaf Physiology and Anatomy by Photoacoustics

Second International Meeting on Photoacoustic Spectroscopy, 1981
Plant leaves are generally composed of about seven to eight layers of cells: an upper epidermis layer, two to three layers of elongated palisade cells, about three layers of spongy cells with large intercellular air spaces and a lower spidermis. The epidermis layers contain pores (stomata) with a mechanism to open or close them, controlled by adjacent ...
Gerard Bults, Benjamin A. Horwitz, Shmuel Malkin, David Cahen   +3 more
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Leaf Anatomy in Grass Systematics

Botanical Gazette, 1958
1. Microscopic examination of transverse sections of grass leaf blades of 101 species in 72 genera indicates six basic types of tissue arrangements. These groups are based on the evidence from leaf anatomy and plastid function only; other equally convincing evidence of phylogenetic significance is purposely not included. 2. The characters considered to
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Systematic Descriptions Of Leaf Anatomy

1995
Abstract This subfamily consists of a single monotypic rhizomatous genus from the mountains of Tasmania, with unifacial evergreen leaves. The dark purple flowers (Fig. lE) are solitary and the inflorescence is a single-flowered rhipidium (Goldblatt 1990). It is previously little-known anatomically, except from Rudall (1986). Since it has
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The Leaf Anatomy of Podocarpus

Transactions of the Botanical Society of Edinburgh, 1944
(1944). The Leaf Anatomy of Podocarpus. Transactions of the Botanical Society of Edinburgh: Vol. 34, No. 1, pp. 1-54.
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Leaf Axil Anatomy of the Araucariaceae

Australian Journal of Botany, 1987
Well defined, persistent meristems, which possess neither a bud-like organisation nor vascular connections with the central vascular cylinder, were found in the apparently blank leaf axils of six species of Agathis and 13 species of Araucaria. In other conifers, leaf axils of similar external appearance are usually reported to lack, or gradually lose ...
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Leaf Anatomy of an Arbutus Taxon from Yugoslavia

Kew Bulletin, 1992
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Bačić, Tomislav, Lawrence, T.J., Cutler, David   +2 more
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Leaf and Stem Anatomy of Tradescantia fluminensis, Vell.

Journal of the Linnean Society of London, Botany, 1925
Summary. 1The investigation was started in the hopes of throwing some light upon the problem of sap supply to the upper parts of leaves which grow by a basal meristem, but has been extended as a developmental study of the shoot. 1The scattered bundles of the stem may be classified into four groups–(a) medullary, (b) perimedullary, (c) cortical, (d ...
Lorna Scott, J. H. Prikstley
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Leaf Anatomy

2023
Fernando Zuloaga, Sandra Aliscioni
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Systematic leaf anatomy of Caladeniinae (Orchidaceae)

Botanical Journal of the Linnean Society, 1994
Abstract Leaf anatomy of 25 species in 15 genera of Caladeniinae (Diurideae, Orchidaceae), excluding Caladenia , was investigated to determine diagnostic characters to be used in forthcoming, broad-based cladistic analyses of the subtribe and to assess interspecific and intergeneric relationships. Of the characters examined, those that show the most
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Ontogeny of Leaf Morphology and Anatomy

1985
Because of their role in intercepting and absorbing radiant energy, and transforming it to energy of organic substances through the complex process of photosynthesis, leaves are the most important organs for plant production, and hence for agriculture.
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