On one of our recent hikes we found and photographed Cypripedium montanum, the Mountain Lady's Slipper, our tenth orchid of the season. We saw hundreds of them at two different locations, most of them either the very dark form with the burgundy-edged pouch, forma welchii, of the paler greenish form. Among them we found two plants with three flowers of the albino form, forma praetertincum. We had searched for this form before and never found it, except for one tiny crippled flower a year ago that we did not even photograph. These flowers were in prime condition, and though the light was failing in the evening, we managed to get decent photos.
Cypripedium montanum fma. welchii
Cypripedium montanum fma. praetertinctum