B. Meurergrimes, NEW EVIDENCE FOR THE SYSTEMATIC SIGNIFICANCE OF ACYLATED SPERMIDINES AND FLAVONOIDS IN POLLEN OF HIGHER HAMAMELIDAE, Brittonia, 47(2), 1995, pp. 130-142
New distributional records of hydroxycinnamoyl spermidines (HCS), incl
uding novel trisubstituted HCSs and flavonol glycosides, in pollen of
Higher Hamamelidae are presented. The 51 taxa analyzed by HPLC and TLC
included members of the families Fagaceae (Castanoideae, Fagoideae, Q
uercoideae), Betulaceae, Juglandaceae, Myricaceae, Hamamelidaceae, Ros
aceae, and Buxaceae (Simmondsia). The results support generic concepts
in the Higher Hamamelidae derived from morphological and chloroplast
DNA data and support a close evolutionary relationship between the Hig
her Hamamelidae and the Rosidae.