The leaves of Tillandsia fasciculata afforded four tetracyclic triterpenoid
s of the cycloartane type, two new compounds identified as cyclolaudenyl fo
rmate, (2) and the (24S)-24-isopropenyl cycloartanone, which we named tilla
ndsinone (1), and the known cyclolaudenone (3) and cyclolaudenol (4).