I have two different Gastrochilus - calceolaris and sororius. They are located in my terrarium. G. calceolaris is flowering second time. I like these little beauties very much. Both plants are still growing new buds, so I can enjoy their flower long time. I don’t quite see differences between these orchids except G. sororius is bigger.
@Ludisia
There are differences between sororius and calceolaris. Both are often muddled up. Here an extract from Opera Botanica Nr. 95 http://img264.imageshack.us/img264/7...eolarislh0.png
I don't have literature for sororius. I hope I could help you.