Ian,
Your triandrus triandrus looks like one that used to be called T. calathinus or loiseleurii, listed in Blanchards book as N. ssp. capax. It was collected in the wild in the French Isles de Glenan off Brittanty so history tells us. The population seems lost. It is beautiful. Note the long corona. There is much controversy over this triandrus. If you have Blanchard’s book it is on pg. 115. An interesting bit to read.
Nancy R. Wilson
Nancy
with regard to your comment on triandrus loiseleuri, The population on St Nicholas is growing in a protected area and appears to be safe at the moment, John Blanchard visited the island a couple of years ago and spoke about the visit at the R.H.S,
If you enter Narcisse des Glenan and search on google it brings up about 500 related sites, most are in french but there is a translation available, it is interesting reading
regards John Gibson