Format:
xiv, 534 Seiten
,
Illustrationen
Edition:
Second edition
Edition:
Also available online
ISBN:
9781108825733
Content:
pt. I. --Introduction to floral diagrams --1. --Introduction to flower morphology --2. -- Thesignificance of floral diagrams --3. --Floral diagrams used in this book --pt. II. --Floral diagrams in the major clades --4. --Systematic significance of floral diagrams --5. --Basal angiosperms: the ascent of flowers --6. --Monocots: variation on a trimerous Bauplan --7. --Early diverging eudicots: a transition between two flower types --8. --Basal core eudicots: the event of pentamerous flowers --9. --Rosids: the diplostemonous alliance --10. --Caryophyllids: how to reinvent lost petals --11. --Asterids: tubes and pseudanthia --pt. III. --Conclusions --12. --Distinctive systematic characters and apomorphic tendencies --13. --Floral diagrams and major angiosperm groups --14. --Outlook
Content:
"There is no general agreement nor any rule about how a flower should be defined. Since the end of the nineteenth century two main contrasting hypotheses have been provided and the discussion is still ongoing (reviewed in Bateman, Hilton and Rudall, 2006). The pseudanthial hypothesis accepts that flowers evolved from a branched, multiaxial structure, i.e. a condensed compound inflorescence (e.g. Eichler, 1875; Eames, 1961). This means that a flower is an assemblage of separately functioning entities that became grouped together. The euanthium hypothesis stated that the flower evolved from a simple uniaxial (euanthial) structure, i.e. a condensed sporophyll-bearing axis with proximal microsporophylls and distal megasporophylls (e.g. Arber and Parkin, 1907). However, reconstructions of the early angiosperm flower (e.g. Sauquet et al., 2017) suffer from the absence of clear transitional forms between ancestral prototypes and angiosperms"--
Note:
Includes index
Additional Edition:
Erscheint auch als Online-Ausgabe ISBN 978-1-108-91907-4
Language:
English
Subjects:
Biology
Keywords:
Pflanzen
;
Pflanzenmorphologie
;
Diagramm
;
Bedecktsamer
;
Systematik
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