Cattleya warneri var. pseudo-concolor 'Pirilo'
 

Even though the petals are not that large I like this clone because the segments are proportional and well arranged giving the flower an unexpected elegance (considering this species well-known petal tips pointing down). The plant has also an unstable genetic behavior with the flowers blooming perfectly concolor in some years and bearing a small blotch of dark lavender in the lip in some other years, hence the pseudo-concolor (or fake concolor).
As always with this species, the flowers are intense and wonderfully fragrant.

http://farm4.static.flickr.com/3486/...aa9388dc_t.jpg

Gorgeous, I really like the look of that dark blotch on the lip, strange that it does not have it every year.

How neat that this lovely thing can keep you guessing from year to year. Surprises are fun!

Kim

It would be interesting to find out what triggers the blotch vs. no blotch. It is very pretty anyway.

Jan, as you know, 'mosca' in labiata corresponds to a very characteristic mark, which form evokes a fly. I have never seen that mark in warneri, so I really am not able to answer your question.
This warneri cannot be named mosca first because the purple mark doesn't have the form of a fly (besides small, it should at least be triangular) and second because it is not genetically stable, it appears in some years, is very light is some others and is completely absent in others (in this case the flower is a perfect concolor). That's why pseudo-concolor is more appropriate.

Interesting info, Jan. Here in Brazil the tendency is to call 'mosca' only the plants with stable mark, having the general form of a fly, repeated every year, even in labiata. If the fly changes the shape and desappears in some years, then the plant is called pseudo-concolor, or sometimes semi-concolor.