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.
References
H. Arano
&
H. Saito
1980: Cytological studies in the family Umbelliferae. 5. Karyotypes of seven species in subtribe Seselinae. — Kromosomo, ser 2, 17: 471–480. Google Scholar
N. Barghi
,
C. Mugnier
&
S. Siljak-Yakovlev
1989: Karyological studies in some Hypochaeris spp. (Compositae) from Sicily. —
Pl. Syst. Evol. 168: 49–57, Google Scholar
R. Dahlgren
,
T. Karlsson
&
P. Lassen
1971: Studies on the flora of the Balearic Islands. I. Chromosome numbers in Balearic angiosperms. — Bot. Not. 124: 249–269. Google Scholar
N. Galland
1990: Recherche sur l'origine de la flore orophile du Maroc: Etude caryologique et cytogeographique. — Trav. Inst. Sci. Rabat, Sér. Bot. 35: 1–168. Google Scholar
A. Levan
,
K. Fregda
&
A. A. Sandberg
1964: Nomenclature for centromeric position on chromosomes. —
Hereditas
52: 201–220, Google Scholar
C. Mugnier
&
S. Siljak-Yakovlev
1987: Karyological studies in some Yugoslavian populations of Hypochoeris (Compositae). — Caryologia 40: 319–325. Google Scholar
P. Quézel
1957: Peuplement végétal des hautes montagnes de l'Afrique du Nord. — Paris. Google Scholar
C. Romero Zarco
1986: A new method for estimating karyotype asymmetry. —
Taxon
35: 526–530. Google Scholar
C. F. Ruas
,
P. M. Ruas
,
N. I. Matzenbacher
,
G. Ross
,
C. Bernini
&
A. L. L. Vanzela
1995: Cytogenetic studies of some Hypochoeris species (Compositae) from Brazil. — Amer. J. Bot. 82: 369–375. Google Scholar
