Hans & John, both your plants look like sarniensis types to me (no bowdenii blood); I say this because they've both straight stamens, bowdeniis & bowdenii hybrids tend to have declinate stamens, with a bit of a curve in them.
There are real problems with nerine naming in that breeders in the past tended to be operating in isolation & would name plants without reference to other breeders, meaning that two different clones would carry the same name ('Afterglow' is one such example, being a name assigned by an Australian breeder & also to an Exbury hybrid). As far as I know, there is no definitive list of nerine cultivar names with descriptions.
Hans, if your friend's Wisley purchase originated from the Wisley glasshouses, rather than being bought in from another nursery, it is quite likely that it was of Norris origin ~ when Tony Norris retired in about 1993, his collection was split, with Wisley receiving one portion & the Norris gift forms the majority of the Wisley nerine collection.
