Someone, Alvin, wrote something I read, but cannot remember where it came from, on this subject. They wanted to lump the Citronelle "albas" in with the Schnells Ghost, and use it as a common description. I myself find the Citronelle plants different enough from the Perdido plants to warrant being called "alba". The Ghost has green veining all through the top, whereas "alba" can have some veining, but for the most part, the top is more white than the Ghost. Flowers are yellow, too, but the tops are very different. Overall form is all leucophylla, but the coloration is different, and consistant. Ask Brooks (SarraceniaObsessed) to share the article with you. Interesting, but I do not agree with it. Differences may be minor, but different enough to give some serious thought.