Paula J. Rudall's Anatomy of flowering plants : an introduction to structure PDF

By Paula J. Rudall

ISBN-10: 0511294530

ISBN-13: 9780511294532

Within the 2007 3rd version of her winning textbook, Paula Rudall offers a complete but succinct creation to the anatomy of flowering crops. completely revised and up to date all through, the e-book covers all points of comparative plant constitution and improvement, prepared in a chain of chapters at the stem, root, leaf, flower, seed and fruit. inner constructions are defined utilizing magnification aids from the easy hand-lens to the electron microscope. various references to contemporary topical literature are integrated, and new illustrations replicate quite a lot of flowering plant species. The phylogenetic context of plant names has additionally been up to date because of more advantageous realizing of the relationships between flowering vegetation. This truly written textual content is perfect for college students learning a variety of classes in botany and plant technological know-how, and is usually an exceptional source for pro and novice horticulturists.

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Additional info for Anatomy of flowering plants : an introduction to structure and development

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Ray cells vary in shape (best viewed in RLS); homocellular rays are composed of cells of similar shapes, whereas in heterocellular rays the cells are of different shapes. Other aspects of variation in the structure of hardwoods include the presence of either axial or radial secretory canals in some woods (Fig. 1). For example, in Tilia cordata (Fig. 7 Betula utilis (Betulaceae). Wood in (A) tangential longitudinal section (TLS) and (B) radial longitudinal section (RLS). b ¼ bar of scalariform perforation plate, r ¼ ray.

The texture and density of a particular type of wood depend on the size, shape and arrangement of its constituent cells73. Wood is composed of a matrix of cells (Fig. 6), some arranged parallel to the long axis (fibres, vessels and chains of axial parenchyma cells), and others (ray parenchyma cells) forming the wood rays that extend radially from the vascular cambium towards the pith. The precise cellular arrangement in wood is often characteristic of species or genera. To observe their structure, woods are sectioned transversely (transverse section: TS) and in two longitudinal planes: along the rays (radial longitudinal section: RLS) and perpendicular to the rays (tangential longitudinal section: TLS).

Scale ¼ 100 mm. 19 20 Organs, cells and tissues proteins (P-proteins) which occur in several morphological forms (amorphous, filamentous, tubular and crystalline) that are often highly characteristic for particular plant families, and thus of systematic and evolutionary value14,116. Sieve-element plastids are classified according to their inclusions: starch (S-type plastids), protein (P-type plastids), or both. By contrast, companion cells are densely cytoplasmic, retaining nuclei and many active mitochondria.

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Anatomy of flowering plants : an introduction to structure and development by Paula J. Rudall

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