After trying to figure out why my Pleurothallis allenii was making keikies and not flowers, I chose to add more lighting to the tank. Within a short period, the plant began blooming - two flowers so far, but not a bad start. The blooms may not be entirely due to the lighting adjustment, but there has been some interest in the past as to whether or not this species will bloom when grown in higher temps - I keep this and other plants at around 80+F during the day, and about 72F at night. Cool temps don't seem to be necessary, at least in this one case.
Mike