Zuzu, I mentioned A.p. var ... or A.p. ssp .... only as examples of how I think the 'rosea' should have been called IF it really were an A. pelegrina.
As to the white version of A. pelegrina, I think it can be an albino more than a var. I suggest the same for the pictures of A. angustifolia: among the population I photographed, there was just one (maybe 2) plants with white flowers.
In fact, I was able to recover my book "Alstroemerias de Chile" (will not lend any of my books again! - came back in poor conditions) by Melica Muñoz Schick, curator of the National Herbarium and Investigator of the botanical chapter of the National Museum of Nature History (her profession is Agronomical Engineer and she comes from and has also formed her own family of botnical investigators). Melica Muñoz has published many scientific investigations and books (I wished I had them all). In her book about Chilean native Alstroemerias she publishes a picture of a white A.p., but does not call her any different from the pink ones. I.S.B.N. 956-8201-02-5, Intellectual Property register Nbr. 135.054
