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Chromosome Numbers of North African Phanerogams. V. Some Counts in Launaea (Compositae, Lactuceae)

Norbert Kilian, Christoph Oberprieler and Robert Vogt
Willdenowia
Bd. 25, H. 1 (Jun. 30, 1995), pp. 273-281
Stable URL: http://www.jstor.org/stable/3996989
Page Count: 9
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Chromosome Numbers of North African Phanerogams. V. Some Counts in Launaea (Compositae, Lactuceae)
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Abstract

Chromosome numbers are reported for nine taxa of Launaea from Morocco and Tunisia. For L. angustifolia subsp. angustifolia a chromosome number (2n = 16) is provided for the first time and in L. nudicaulis a hitherto unkown tetraploid cytotype (2n = 36) is reported. The combinations L. angustifolia subsp. arabica and L. mucronata subsp. cassiana are formed as names new to science.

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