(B. ) Pittier, Pittier, (B. ), Pittier, (B. ), Pittier, (B. ), Pittier, (B. ), Pittier, (B. ), Pittier, (B. ), Pittier, (B. ), Pittier, (B. ), Pittier, (B. ), Pittier, (B. ), and Pittier, (B. ), ?Cat. Fl. Venez. 2: 356. 1947.?, 1947.