7206: Three views of flower (natural site specimens) May 22, 1972

7207: Six flowers (natural site specimens) May 22, 1972

7804: Habitus (natural site specimens) May 14, 1978

7803: Habitus (natural site specimens) May 14, 1978

Origin of depicted specimens: Switzerland, Canton Bern (border to canton Fribourg), Schwarzwasserbrücke, 600m, calcareous sandstone. Relictic lowland site of the last ice-age, collected by myself. See also pictures with P. leptoceras sj70.187 and P. vulgaris 7208. Note the different size of the yellow spot(s) on the central lobe of the lower lip in 7207.