Masdevallia constricta is in flower the first time for me. It is from Ecuador and Peru and grows there at an altitude of 1200 to 1800 meters. So she likes a more temperate culture. With me she grows cool to temperate. And apparently that works too. The flower (12cm from tail to tail) is almost larger than the leaves and covered with small "hairs". It belongs to the subtribe Saltatrices. In this group the sepals grow more or less into a tube. M. urosalpinx is a synonym.