Antirrhinum (DRAFT)

https://www.antspec.org/hz   (2013)

Along Rd Eix Pirinenc N260, the same spot had all yellow flowers in 2013. By 2024, the area had few light magenta and a nearly white flower. The floral colors have changed significantly in just a few years, shifting from a uniform yellow to diverse shades.

(2024)

We are observing a stabilizing formation of the pseudomajus populations in the East.

The transitional phenomenon merged during the observing period (2018-2024) to the West or more uphill, with the tendency to get more magenta-red forms within their populations. On the contrary, within the adjacent yellow striatum populations, more and more white, orange, and magenta flowers were interspersed remarkably in east-oriented and wind-protected step slopes higher up (magenta dots in map).
The purpose of this summary is to highlight a clear trend we observed-the increasing prosperity of magenta pseudomajus populations more and more uphill. 

With a handheld spectrophotometer, we measured 42 upper lobes of 42 Antirrhinum striatum/pseudomajus flowers selected at random around the transition area of the taxa. The resulting L*a*b shows the pure forms at either end. The flesh indicates the trend of transition we postulate.

June 2024. The French monitoring group is in action. As soon as one registers such an individually affluent population on the "yellow" side, one should be alert to a quick transition in flower color; see (>).