ISSN:0040-0262    

DOI:10.1002/j.1996-8175.1977.tb04186.x

出版商:Wiley    

年代:2019

数据来源: WILEY

ISSN:0040-0262    

DOI:10.1002/j.1996-8175.1977.tb04187.x

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryTaxa of the small genusAnacyclus, centered in N.W. Africa, have very similar karyotypes (2n = 18), but Giemsa C‐banding reveals striking differences. Chemosystematic information mainly come from distinct flavonol and diosmetin O‐glycosylation patterns. Furthermore, morphological analyses according to the principles of Hennig (1966) are presented in cladogram form. Comparison of results obtained by such different methods is facilitated by similarity diagrams, which show good (but not complete) correspondence of the data‐sets. Chromosome C‐banding therefore appears to be a powerful new tool for karyosystematics in plants. Potentials for a synthetic systematic treatment ofAnacyclusand an evolutionary interpretation of the various data are discussed.

ISSN:0040-0262    

DOI:10.2307/1220037

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryLiterature relating to the subfamilies of the Chenopodiaceae was reviewed with the conclusion that two subfamilies,ChenopodioideaeandSalsoloideae, should be recognized.

ISSN:0040-0262    

DOI:10.2307/1220038

出版商:Wiley    

年代:2019

数据来源: WILEY

ISSN:0040-0262    

DOI:10.1002/j.1996-8175.1977.tb04190.x

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryIndividuals representing five taxa and numerous unidentified OTU's of red oaks native to the western Great Lakes region of the United States were examined through principal components analysis. Two data sets, one consisting of twenty untransformed characters and one in which various characters were redefined as ratios, were employed for comparative analyses. Although minor differences are noted, the two data sets provide essentially the same view of the relationships between the included OTU's. The five taxa appear to form more or less discrete groups with the unidentified OTU's occupying positions of intermediacy. The results support previous conclusions that extensive hybridization occurs among the red oaks of this geographic region.

ISSN:0040-0262    

DOI:10.2307/1220040

出版商:Wiley    

年代:2019

数据来源: WILEY

ISSN:0040-0262    

DOI:10.1002/j.1996-8175.1977.tb04192.x

出版商:Wiley    

年代:2019

数据来源: WILEY

摘要:

SummaryThe hyperspatial cluster concept of taxa is considered. The number of individuals required to delineate figures in high dimensionalities is shown to be very great. A biological basis for the hyperspherical form is suggested, and a possible reason for the existence of “difficult” taxa is presented.

ISSN:0040-0262    

DOI:10.2307/1220041

出版商:Wiley    

年代:2019

数据来源: WILEY

ISSN:0040-0262    

DOI:10.1002/j.1996-8175.1977.tb04194.x

出版商:Wiley    

年代:2019

数据来源: WILEY

ISSN:0040-0262    

DOI:10.2307/1220042

出版商:Wiley    

年代:2019

数据来源: WILEY