El Grupo de Ramalina Cochlearis Zahlbr. Con especial referencia al tropic americano

The group of Romalina cochlearis Zahlbr. and its allies in tropical America have been revised. Romalina cochlearis is reported from four countries: México, Honduras, Colombia and Venezuela. Romalina escorialensis and R. vareschii, both from Venezuelan Andes, and R. xalapensis from México are described as new. A key and descriptions are provided

Ramalina subfraxinea Nyl. Var. Confirmata (Nyl.) N. Stevens (Ascomicete liquenizado, Ramalinaceae) en America

Romalina subfraxinea Nyl. Var. Confirmata (Nyl.) N. Stevens ist reported as new to the New World from the Venezuelan Andes. Thus far this variety was knowm only from Australia, New Caledonia and Indian Ocean. It has cryptochlorophaeic acid as chemical compound. Comments about ecology and morphology are given