Hypochaeris arachnoidea Poir., a hitherto neglected species in NW Africa

Zusammenfassung

The NW African Hypochaeris arachnoidea is reinstated, a detailed description of this annual, a full synonymy including lectotypifications, and a key to the Moroccan species of Hypochaeris are provided. Chromosome numbers and karyotype information for six Moroccan Hypochaeris species from ten populations (including one population from Ireland) are presented and compared with literature data on karyotypes in the genus.