Verbatim text: Bain, J. F., B. S. Tyson, and D. F. Bray. 1997. Variation in pollen wall ultrastructure in New World Senecioneae (Asteraceae), with special reference to Packera. Canad. J. Bot. 75: 730–735.
Author: Bain, J.F., Tyson, B.S., Bray, D.F.
Year: 1997
Title: Variation in pollen wall ultrastructure in New World Senecioneae (Asteraceae), with special reference to Packera
Journal: Canad. J. Bot
Volume: 75
Pages: 730–735