Here's a great link on Pleurothallids:

http://www.mountainorchids.com/4_pleuro_cult.htm

Masd. Veitchiana is a Cool - Intermediate grower.

Culture quoted " many people use the phrases "Warm growing" & "Warm Tolerant" as though they were the same thing! This is often misleading as there are relatively few truly "warm preferring" Pleurothallids while there are many that are "warm tolerant" (please read as "Intermediate growing"). Even Pleurothallid specialists often refer to some as being "warm" but most often that simply conforms to the traditional orchid terminology as "Intermediate" growing conditions."

Hope this helps you out!!

sweetjblue