Sill (Gardner) (2002) pointed out a possible relationship between the substrate and the flower colour, suggesting that those plants with green petals are saxicolous while those with violet petals are epiphytic. Neither the information of our database nor our personal observations confirm this, since we have reports of plants of Tillandsia parryi growing as epihytes (Ceja et al. 1298, 1300) or as saxicoles (Anderson s.n., Zamudio 9108, Carranza 2976, Martínez & Martínez 2042, 2046). —SeeEspejo & Lopez 2007
