]> [author note: SMU: Fabaceae, pollen morphology, Bryophytes and vascular plant floristics] Example of Name Published: Gnaphalium helleri Britton var. micradenium (Weath.) Mahler, Sida 6(1): 32. 1975 Botany Mahler, William F. Mahler, William F. W. F. Mahler Mahler William F. Mahler 1930 2013