Figure 2. A in YELLOW WATER LILIES (NUPHAR, NYMPHAEACEAE) IN GREAT BRITAIN: A NEW HYBRID, A REAPPRAISAL OF RECORDS, AND A REVISED STATUS OF N. ADVENA

Figure 2. A, Flower of Nuphar × porphyranthera with some stamens removed, from NH8 population, Oulton Park, June 2021. B, Sterile stamens of Nuphar × porphyranthera: filament length (fl), anther length (al). C, Fertile stamens of Nuphar advena. Scale bars are approximate (no measurements of the photographed features were taken). Photographs: R. V. Lansdown.