Dugald C. MacArthur
b Scotland. d 2018
Dugald C. MacArthurPerianth segments broadly ovate, prominently mucronate, spreading, with margins wavy, overlapping one- third to a half; the inner segments a little inflexed, somewhat creased, with margins nicked and more strongly wavy; corona long cup-shaped, ribbed, darker in tone than the perianth, with mouth straight and heavily frilled, the rim deeply notched in places.
There are no photos of "Pennyghael" in Daffseek.