Plant Systematics and Evolution

, Volume 145, Issue 3–4, pp 269–289 | Cite as

Cytotaxonomische Untersuchungen in der Artengruppe desRanunculus alpestris (Ranunculaceae)

  • Moritz Müller
  • Matthias Baltisberger
Article

Cytotaxonomical studies in the group ofRanunculus alpestris (Ranunculaceae)

Abstract

Morphological and cytological investigations as well as crossing experiments were carried out with the 5 species of theRanunculus alpestris group (R. alpestris L.,R. traunfellneriHoppe,R. bilobusBertol.,R. crenatusWaldst. etKit.,R. magellensisTen.). A key to the species is presented; localities and distribution are given in addition to extensive diagnoses. Crossing experiments between the 5 taxa were successful (F1-F3 individuals, backcross types, tripeland quadrupelbastards); the morphology of the experimentally obtained F1-hybrids was mostly intermediate. All 5 species as well as all hybrids have a chromosome number of 2n = 16; there is no statistically significant difference between the karyotypes of the 5 taxa. According to the results of the morphological investigations and the crossing experiments we can distinguish 2 subunits of very closely related species: a)R. alpestris, R. traunfellneri, R. bilobus; b)R. crenatus, R. magellensis. The speciation within the group ofRanunculus alpestris is discussed.

Key words

Ranunculaceae Ranunculus alpestris R. traunfellneri R. bilobus R. crenatus R. magellensis Morphology localities distribution crossing experiments chromosome numbers karyotypes speciation Flora of Europe 

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Copyright information

© Springer-Verlag 1984

Authors and Affiliations

  • Moritz Müller
    • 2
  • Matthias Baltisberger
    • 1
  1. 1.Geobotanisches InstitutEidgenössischen Technischen Hochschule ZürichZürichSchweiz
  2. 2.Eidgenössische Forschungsanstalt für landwirtschaftlichen PflanzenbauZürichSchweiz

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