Download Atlas of Stem Anatomy in Herbs, Shrubs and Trees: Volume 2 by Fritz Hans Schweingruber, Annett Börner, Ernst-Detlef PDF

By Fritz Hans Schweingruber, Annett Börner, Ernst-Detlef Schulze

This paintings, released in volumes, includes descriptions of the wooden and bark anatomies of 3000 dicotyledonous crops of one hundred twenty households, highlighting the anatomical and phylogenetic range of dicotyledonous crops of the Northern Hemisphere. the 1st quantity largely treats households of the Early Angiosperms, Eudicots, middle Eudicots and Rosids, whereas the second one concentrates at the Asterids.

Presented in Volume 2 are microsections of the xylem and phloem of herbs, shrubs and timber of one thousand species and ca. 35 households of varied lifestyles varieties of the temperate sector alongside altitudinal gradients from the lowland on the Mediterranean coast to the alpine sector in Western Europe. precise awareness is given to the very assorted relations of Asteraceae. the worldwide standpoint of the findings is underlined via the research of four hundred 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 USA, New Zealand and the boreal and arctic zones in Eurasia and Canada.

The presence of annual earrings in all lifestyles varieties demonstrates that herbs and dwarf shrubs are a very good software for the reconstruction of annual biomass construction and the interannual dynamic of plant institutions. the typical precept of the anatomical expression of secondary development is a key think about knowing evolution and variation tactics in all existence types, from the three cm tall crepide pigmea (Crepis pygmaea) within the alpine region to the forty m tall ash (Fraxinus excelsior) in significant eu riparian forests. The research opens titanic fields of analysis for dendrochronology, wooden anatomy, taxonomy and ecology.

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Extra info for Atlas of Stem Anatomy in Herbs, Shrubs and Trees: Volume 2

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4. Semi-ring-porous xylem. The ring boundary is indicated by a few large earlywood vessels. Stem of an 80 cm-tall shrub, ruderal, arid subtropical, Chio, Tenerife, Macaronesia, Spain. Sonchus capillaris, transverse section.  2. Annual plant with very small vessels arranged in radial multiples. All cells are lignified. Polar root of a 40 cm-tall therophyte, ruderal, hill, Teglio, Valtellina, Italy. Crepis capillaris, transverse section.  5. Diffuse-porous xylem. The ring boundary is indicated by a marginal parenchymatic band.

Our results are in accordance with previous authors. Holdheide (1951) described the bark of Hedera helix in detail. Secretory ducts in the phloem indicate a taxonomic relationship to the Apiaceae family. 1 sclereids in tangential rows R8 with crystal druses 4 4 R12 with laticifers, oil ducts or mucilage ducts R16 phellem consists of regularly arranged rectangular cells, Rosaceae type 4 38 Asteraceae Number of species, worldwide and in Europe Asteraceae The cosmopolitan Asteraceae family includes 1600 genera with 23,000 species.

Apotracheal and paratracheal parenchyma with a tissue of fairly thickwalled fibers. Stem of a 2 m-tall shrub, hill zone, temperate climate, Botanical Garden Batumi, Georgia. Ilex colchica, transverse section. 32 Ecological trends and relations to life forms Distinct ring boundary zones are characteristic for species of temperate climates and growth zones for Ilex canariensis, which grows in the laurel forest in subtropical climate. Aquifoliaceae Discussion in relation to previous studies The xylem of the genus Ilex was subject of an intensive study by Baas (1973).

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