Araiostegia pulchra
19th June 2015
A species with particularly finely divided fronds. Collected by Crug Farm Plants on the slopes of Fansipan in north Vietnam under their number
HWJ1007.
Very like the other species I grow, but apparently distinguished by its "broad, appressed, usually crisped rhizome scales." (Flora of China).
Now I know what I am looking for, I will go and check.