Jg. Knoph et C. Leuckert, CHEMOTAXONOMIC STUDIES IN THE SAXICOLOUS SPECIES OF THE LICHEN GENUS LECIDELLA (LECANORALES, LECANORACEAE) IN AMERICA, Nova Hedwigia, 59(3-4), 1994, pp. 455-508
Lecidella, a widespread genus of crustose lichens, includes 19 saxicol
ous species in America. These are recorded, and details of chemistry,
ecology and biogeography are presented. The American distribution of m
ost species and their chemotypes is mapped. A key for the determinatio
n of the species is provided. Lecidella herteliana is described as new
.