Victoria Padilla's book is chock full of info on over 100 species of Tillies. The book covers all bromeliads, but the Tillandsia section is particularly rich, with historical and scientific data, and unique photos. For example, here's an astounding image of wild Tillandsia straminea growing in profusion over a vast area of Peruvian desert during the last century:
|Padilla, "Bromeliads", pg. 1|
|T. straminea, MR, 2013|
What Tillandsia books have you found, and in what languages?