
TY  - JOUR
A1  - Bayer, Randall J. 
A1  - Cross, Edward W. 
T1  - A reassessment of tribal affinities of the enigmatic genera <emph type="2">Printzia</emph> and <emph type="2">Isoetopsis</emph> (Asteraceae), based on three chloroplast sequences
JF  - Australian Journal of Botany
JO  - Aust. J. Bot.
Y1  - 2002
VL  - 50
IS  - 6
SP  - 677
EP  - 686
KW  - 
UR  - https://doi.org/10.1071/BT01108 
N2  - The tribal affinities of two dubiously placed genera of the Asteraceae, Printzia and Isoetopsis, were assessed by using three chloroplast DNA sequences, the trnL/F spacer, the trnL intron and the matK coding region. The outgroup was represented by two species of the tribe Barnadesieae, whereas one to six genera (43 species including Printzia and Isoetopsis) of the tribes of the Asteroideae [Anthemideae (six genera), Astereae (five) Calenduleae (two), Gnaphalieae (six), Heliantheae s.l. (five), Inuleae s.str. (three), Plucheeae (two), Senecioneae (four)] and Cichorioideae [Arctotideae (one), Cardueae (two), Lactuceae (two), Liabeae (one), Mutisieae (one), Vernonieae (one)] were chosen as the ingroup. Phylogenetic analysis indicates that both Printzia and Isoetopsis have a strong affinity with members of the tribe Astereae. At some point in their taxonomic history, both genera had been placed in this tribe and there are good morphological and chemical characters that justify this placement. 
ER  -

