]> [author note: son of M. P. Porsild. Herbarium and types: CAN; additional material in many herbaria, e.g. ALA, H, M] [collector note: Son of M. P. Porsild] Botany Porsild, Alf Erling Porsild, Alf Erling A. E. Porsild A. E. Alf Erling Porsild Alf Erling Porsild; Erling Porsild Erling Porsild Porsild, A. E. 1901 1977