Summary................................................... V

Acknowledgements............................................ VII

CHAPTER 1

Introduction................................................. 1

CHAPTER 2

Taxonomic History: An Overview ................................. 5

CHAPTER 3

Morphological Characters ....................................... 11

3.1Material and Methods..................................... 11

3.2 Results................................................ 12

3.2.1 Life Form and Habit ................................ 12

3.2.2 Root and Rhizome .................................. 13

3.2.3 Stem............................................ 14

3.2.4Leaves ........................................... 15

3.2.5Synflorescence ..................................... 25

3.2.6Involucre and Phyllary ............................... 27

3.2.7 Bractand Bracteole ................................. 29

3.2.8 Ray Florets ....................................... 29

3.2.9 Disk Florets ....................................... 37

3.2.10 Achenes .......................................... 37

3.2.11 Pappus........................................... 39

CHAPTER 4

Karyology................................................... 41

4.1Material and Methods..................................... 42

4.2 Results................................................ 42

4.2.1Chromosome Numbers ............................... 42

4.2.2Karyotypes ....................................... 63

4.3Discussion .............................................. 66

4.3.1 Base Chromosome Numbers ........................... 66

4.3.2Polyploidy ........................................ 66

4.3.3Systematic Implications .............................. 67

CHAPTER 5

Phylogeny.................................................. 71

CHAPTER 6

Taxonomy.................................................. 79

6.1Methodology ............................................ 79

6.2 Species Concepts......................................... 81

6.3Taxonomic Treatment ..................................... 82

CHAPTER 7

Phytogeography.............................................. 745

7.1Distributional Range of Cremanthodium ....................... 746

7.2 Major Geographical Regions of Cremanthodium ................. 747

7.3 Species Numbers in Different Countries or Regions ............... 747

7.4Widespread and Rare Species ............................... 752

References.................................................. 757

Appendix I.List of Nomenclatural Novelties Published in this Work ....... 771

AppendixII. List of New Synonyms Published in this Work ............. 773

AppendixIII. List of New Typifications Published in this Work .......... 775

AppendixIV. List of Chromosome Counts Currently Known

inCremanthodium, with the Species Arranged

Alphabetically..................................... 777

Appendix V.Numerical List of Taxa in Cremanthodium ................ 779

Appendix VI. List of Specimens Examined.......................... 783

Index to Scientific Names....................................... 807

Langue(s) : Anglais

Public(s) : Etudiants, Professionnels, Recherche

Editeur : EDP Sciences & Science Press

Collection : Current Natural Sciences

Publication : 24 juin 2024

Référence eBook [PDF] : L29101

EAN13 eBook [PDF] : 9782759829101

Intérieur : Couleur

Nombre de pages eBook [PDF] : 820

Taille(s) : 290 Mo (PDF)