]> [author note: G; Obituary & Photograph in: J. Bryology 23(2): 153. 2001; Candollea 56(1): 45-57. 2001] [collector note: G; Obituary & Photograph in: J. Bryology 23(2): 153. 2001] Botany Geissler, Patricia E. Geissler, Patricia E. P. E. Geissler Patricia E. Geissler 1947 2000