I read on some document (was it in the red data book?) that the flowering period of Anacamptis urvilleana and Anacamptis pyramidalis do not overlap.
Here is a photo which dis-prooves this.
Also you can compare the flowers of the two anacamptis species. Note how larger are the A. pyramidilis
Anacamptis urvilleana and pyramidalis
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Anacamptis urvilleana and pyramidalis
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Yes MWP, what you read was/is right, in general (except exceptions) 
This year we found 1 A. pyram. in flower in March! Between 50 A. urv. But usually, A. urv. blooming ends in March/April and A. pyram. starts April/May without overlapping. This spring was a crazy spring- on the other hands- this spring allows hybridizations of several things- even of Ana-species (which will hopefully will be seen in 2017 or 2018)

This year we found 1 A. pyram. in flower in March! Between 50 A. urv. But usually, A. urv. blooming ends in March/April and A. pyram. starts April/May without overlapping. This spring was a crazy spring- on the other hands- this spring allows hybridizations of several things- even of Ana-species (which will hopefully will be seen in 2017 or 2018)
