i know the 'red apples' are a favorite among growers here:
but raffs are nice too!
BE's clone 154
BE's clone 99
EP's raff (g.)
here are some more species:
N. mirabilis var echinostoma
N. adnata basaling like N. amp (try to ignore the weeds)
N. benstoneii
rubra N. albomarginata
my fav part of N. veitchii (f.) [EP]
