Results 301 to 310 of about 107,173 (352)
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Botanical Journal of the Linnean Society, 1975
A study of leaf anatomy of 24 genera of Cunoniaceae was made. The prevailing petiole vasculature is a nearly complete, usually adaxially flattened, medullated cylinder with the flat dorsal segment separated from the ventral arc. Medullary and cortical vasculation in Codia, Cunonia, Geissois and Pancheria is correlated with an increase in leaf ...
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A study of leaf anatomy of 24 genera of Cunoniaceae was made. The prevailing petiole vasculature is a nearly complete, usually adaxially flattened, medullated cylinder with the flat dorsal segment separated from the ventral arc. Medullary and cortical vasculation in Codia, Cunonia, Geissois and Pancheria is correlated with an increase in leaf ...
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Anatomy of Leaf Classification Techniques
2019 International Conference on Machine Learning, Big Data, Cloud and Parallel Computing (COMITCon), 2019There are number of categories of flora and fauna on earth. Vegetation is important for the existence of life. Leafs are the essential part of this vegetation. It is important to recognize them so that we can preserve them for the future. Classification is a process to distinguish the leaf on the basis of features that are extracted from the leaf ...
Shilpi Aggarwal, Madhulika Bhatia
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Leaf anatomy inTigridieae (Iridaceae)
Plant Systematics and Evolution, 1991Leaf anatomy is described in 32 species of 16 genera of the New World tribeTigridieae (Iridaceae, Iridoideae), including examples from both subtribesCipurinae andTigridiinae. Both plicate (pleated) and foliated (with flanges, or keel extensions) leaf types occur in both subtribes. However, amongTigridiinae, foliated leaves are restricted toTigridia and
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Anatomy of non-uniform leaf photosynthesis
Photosynthesis Research, 1992Since 1986, non-uniform photosynthesis over the leaf area that may be attributed to patchy stomatal closure, has been an important issue in stress physiology of photosynthesis. In this review, I first outline the gaseous environment within the intercellular spaces, because this is the most fundamental background of this problem.
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American Journal of Botany, 1934
Ash. In Fraxinus peunsylvanica Marshall the essential structure of the embryonic leaf is revealed by a study of an unswollen leaf bu-id of late March. Each leaflet (fig. I, 2) consists of midrib and conduplicately folded wings. The wings are composed of a limiting layer of small, brick-shaped cells and a mesophyll region of cells of somewhat similar ...
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Ash. In Fraxinus peunsylvanica Marshall the essential structure of the embryonic leaf is revealed by a study of an unswollen leaf bu-id of late March. Each leaflet (fig. I, 2) consists of midrib and conduplicately folded wings. The wings are composed of a limiting layer of small, brick-shaped cells and a mesophyll region of cells of somewhat similar ...
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Leaf anatomy of some Garrya species
Botanical Journal of the Linnean Society, 1970The anatomy of the leaves of five species of Garrya has been investigated with a view to determining if this would be helpful in the taxonomic assignment of the genus, which has had a disputed taxonomic position. Our observations indicate that the leaves of Garrya show several anatomical features which are unknown or rare in the Cornaceae, the ...
G. S. PALIWAL, LALITA KAKKAR
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Leaf anatomy in the Tecophilaeaceae
Botanical Journal of the Linnean Society, 1986ARROYO, S., 1986.Leaf anatomy in the Tecophilaeaceae. Leaf anatomy of 12 species of the seven genera in the Tecophilaeaceae is described. Characters of taxonomic value within the family are the shape of epidermal cells, hairs and venation. Characters of diagnostic importance at the family level include the occurrence of raphide sacs in the mesophyll ...
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Leaf anatomy ofRaouliaHook.f. (Compositae, Gnaphalieae)
Botanical Journal of the Linnean Society, 1998Abstract Leaf anatomy is compared for all species of Raoulia. The species are tabulated according to their lamina structure. Noteworthy anatomical features are lamina type and grade of differentiation, stomatal position, epidermal and cuticle thickness, shape of mesophyll cells, presence or absence of central clear cells, sclerenchyma caps, abaxial ...
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Leaf Physiology and Anatomy by Photoacoustics
Second International Meeting on Photoacoustic Spectroscopy, 1981Plant 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 +3 more
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Leaf Anatomy in Grass Systematics
Botanical Gazette, 19581. 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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