Vol 5 (2010)

Table of Contents


Pluteus section Celluloderma in the U.S.A. PDF
Andrew M. Minnis, Walter J. Sundberg 1-107
Pluteus is a cosmopolitan euagaric genus found commonly on xyloid (woody) substrates. A taxonomic revision is presented for species of Pluteus section Celluloderma known from the U.S.A. Type studies of all taxa originally described from the U.S.A. as well as additional morphological data and keys are presented. Two new species, Pluteus deceptivus and Pluteus phaeocyanopus, and one new variety, Pluteus seticeps var. cystidiosus, are described, and the new name, Pluteus homolae, is given for Prunulus ludovicianus. Notes are provided for two extralimital taxa and three taxa that are doubtful or excluded from Pluteus section Celluloderma.

Collema quadrifidum, a new epiphytic lichen species from the Pacific Northwest of the United States PDF
Daphne Stone, Bruce McCune 1-6
A new species, Collema quadrifidum, is described from the Pacific Northwest . This small, foliose species has distinctive square, 4-celled spores.

Parmelia barrenoae, a macrolichen new to North America and Africa PDF
Brendan P. Hodkinson, James C. Lendemer, Theodore L. Esslinger 1-5
The foliose lichen Parmelia barrenoae is newly reported for North America based on material collected throughout the western United States (California, Idaho, Oregon, and Washington) and for Africa based on material from the Middle Atlas mountain range of Morocco. In addition to morphology, ITS sequence data were examined to confirm the identity of North American material. The species was originally described from the Iberian Peninsula of Europe, and has not been reported from anywhere outside of that region since its description. A revised account of the species is provided in light of the additional material now available from geographically diverse populations.

Aurantiopileus mayanensis a new genus and species of polypore (Polyporales, Basidiomycota) from Belize with connections to existing Asian species PDF
James Ginns, Daniel L. Lindner, Timothy J. Baronia, Leif Ryvarden 1-10
A new genus and species of polypore, Aurantiopileus mayanensis, is described from Central America based on a visually striking collection made in the cloud forests of the Maya Mountains in Belize. Phylogenetic analysis using nLSU sequences and distinctive morphological characters support the erection of a new genus to accommodate this species. Two Asian species formerly placed in Gloeoporus are also considered to be members of this new genus and the new combinations are provided, along with a key to the three taxa now placed in Aurantiopileus.