C.S.Gardner (S.Watson) 1891 - "Gardner CS (1984) NEW SPECIES AND NOMENCLATURAL CHANGES IN MEXICAN ""TILLANDSIA"" - I. Selbyana 7(2/4): 361-379. Retrieved from http://www.jstor.org/stable/41760383"
There is no corrections for Tillandsia utriculata subsp. pringlei yet.