Mason E. Hale
Published: 1974
Total Pages: 56
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A revision is made of the lichen family Thelotremataceae in Dominica, based on previously published records by Elliott and on collections by the author. The family comprises 48 species in 4 genera, Leptotrema, Ocellularia, Phaeotrema, and Thelotrema. The following 15 species are described as new: Ocellularia antillensis, O. conglomerata, O. dominicana, O. maculata, O. mordenii, O. nigropuncta, O. rimosa, O. sorediata, Phaeotrema aggregatum, P. obscurum, Thelotrema confusum, T. dominicanum, T. papillosum, T. tenue, and Leptotrema deceptum. Three new combinations, Ocellularia fecunda (Vainio) Hale, Phaeotrema disciforme (Leighton) Hale, and Leptotrema occultum (Eschweiler) Hale, are also made. Morphological characters are reviewed and the chemistry of each species is presented in detail. The family is exceptionally well developed in mature rain forest.