Cultivar nameCultivar groupSpeciesSynonymsDescriptionCultivation notesSource
AbasipinnulumDepauperateAthyrium filix-feminaMediodeficiensThis curiosity appears from a distance to be a normal, strong growing wild Athyrium but on closer inspection it becomes apparent that one or more of the pinnules, usually next to the rachis are missing or reduced to what appears to be a whisker but in reality is what remains of the vein of the pinnule. The original plant to bare this name was found in Wigton, now in Cumbria, by Charles Druery in 1884 although several other ferns with a similar characteristics have been found in other parts of the country. A plant found at Crook near Bishop Auckland was described thus, “Basal Pinnules wanting”, “also found at Kentmere”. Jimmy Dyce raised a similar percristate Athyrium which he called 'deficiens percristatum', an image of a frond from this cultivar appared on the cover of the Pteridologist Vol. 1, Part 2. Generally as for species. Will grow in most soils but prefers acid conditions; as someone says in good 'woodland duff'. Also best in light shade but will tolerate some sun in the morning and evening, or more if in damp conditions. Protect from strong winds which would damage the fronds.Ian Unsworth
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