Download PDF by Fritz H. Schweingruber;Annett: Atlas of Stem Anatomy in Herbs, Shrubs and Trees: Volume 1

By Fritz H. Schweingruber;Annett B?de?ed??ede??d???rner;Ernst-Detlef Schulze

This paintings, released in volumes, comprises descriptions of the wooden and bark anatomies of 3000 dicotyledonous vegetation of one hundred twenty households, highlighting the anatomical and phylogenetic range of dicotyledonous vegetation of the Northern Hemisphere. The first volume largely treats households of the Early Angiosperms, Eudicots, middle Eudicots and Rosids, whereas the second one concentrates at the Asterids.

Presented in Volume 1 are microsections of the xylem and phloem of herbs, shrubs and bushes of 1200 species and eighty five households of varied existence sorts of the temperate sector alongside altitudinal gradients from the lowland on the Mediterranean coast to the alpine quarter in Western Europe. the worldwide viewpoint of the findings is underlined by way of the research of 500 species from the Caucasus, the Rocky Mountains and Andes, the subtropical quarter at the Canary Islands, the arid zones within the Sahara, in Eurasia, Arabia and Southwest North the US, and the boreal and arctic zones in Eurasia and Canada.

The presence of annual earrings in all existence types demonstrates that herbs and dwarf shrubs are an outstanding device for the reconstruction of annual biomass construction and the interannual dynamic of plant institutions. the typical precept of the anatomical expression of secondary progress is a key consider figuring out evolution and edition approaches in all lifestyles kinds, from the two cm tall whitlow grass (Draba arctica) within the arctic to the forty m tall beech (Fagus sylvatica) in vital eu controlled forests. The learn opens huge fields of analysis for dendrochronology, wooden anatomy, taxonomy and ecology.

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Additional info for Atlas of Stem Anatomy in Herbs, Shrubs and Trees: Volume 1

Sample text

A group of sclerenchymatic cells in a tangential row lies in the cortex. Large laticifers lie in a tangential, simple phloem. Bark of a liana, thermophile zone, subtropical climate, Tenerife, Canary Islands. Periploca laevigata, transverse section.  21. Simple construction of the bark: The cortex consists of large parenchyma cells and the tangential unstructured phloem on small parenchyma and sieve tubes. Laticifers are absent. Rhizome of a perennial herb, garden, mountain subtropical climate, Gomera, Canary Islands.

2. Annual boundaries are marked by a row of radial flat fibers in the latewood. Xylem with semi-porous vessel distribution, apotracheal parenchyma and uniseriate rays. Shrub, canyon, succulent zone, subtropical climate, Gomera, Canary Islands. Nerium oleander, transverse section. r Fig. 3. Annual boundaries are marked by semi-ring-porous vessel distribution and thin-walled fibers in the earlywood. Root collar of succulent plant, succulent zone of the dry subtropical climate, Gomera, Canary Islands.

Vinca minor L. Vincetoxicum officinale Medik. Asclepias subverticillata (Grey) Vail Asclepias syriaca L. Asclepias tuberosa L. T. E. Br. Leptadenia pyrotechnica Decne. Periploca aphylla Decaisne Periploca graeca L. Periploca laevigata Ait.  7). Most species have vestured pits. They seem to be absent in Vinca minor and V. major, Vincetoxicum officinale and Caralluma quadrangula.  1. Distinct annual boundary of a slightly semi-ring-porous xylem. Vessels are small (<20 µm) and numerous (>200/mm2).

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