Aechmea gracilis Lindm.

Literature references:

Bromelia: 6(1-4):8 BSA (Web) FCBS (Web) Lindman 1891: 6 Oliva-Esteve 2002: 20 Rauh 1981, 1990: Abb. 275 Smith & Downs 1979: 1874,1876 Tropiflora Cargo Rep: 15(1) Wanderly & Martins 2007: 53