Cystopteris diaphana, the greenish bladder-fern or diaphanous bladder-fern, is a fern in the family Cystopteridaceae.
Distribution It is found locally on the Atlantic seaboard of Europe.
Status in Britain The species was found for the first time in Britain in February 2000 on the banks of the River Camel in Cornwall (Murphy & Rumsey, 2005).Murphy, R. J. and F. J. Rumsey (2005) Cystopteris diaphana (Bory) Blasdell (Woodsiaceae) - an overlooked native new to the British Isles Watsonia 25: 255-26Rumsey, F.J. 2007. An early specimen of Cystpteris diaphana (Bory) Blasdell supports its native status. Watsonia 2007 26 : 489 - 490.
References