Douglas and John W. Blanchard, England
Year Registered: 1968
Hamzali x Matapan
Ringstead
Section: Tazettae
N. dubius
Fls 1-2 or exceptionally 3 per stem, 40 mm wide; perianth segments broadly ovate, mucronate, spreading, with midrib showing, overlapping half; the inner segments less noticeably mucronate, with margins slightly wavy; corona bowl-shaped, ribbed, with mouth straight and wavy.