Vol 7 (2012)

Table of Contents

Articles

Tsugacorticium kenaicum (Hymenochaetales, Basidiomycota), a new corticioid genus and species from Alaska PDF
Karen K. Nakasone, Harold H. Burdsall Jr. 1-9
The new corticioid genus and species, Tsugacorticium kenaicum from Alaska, is described. Primarily found on attached, dead, corticate branches of mountain hemlock in the Kenai Peninsula, T. kenaicum is characterized by small, soft, white to yellow basidiomata, thickened subhymenium, much branched dendrohyphidia, and small globose to subglobose basidiospores. Although morphologically similar to Dendrothele (Agaricales) and Dendrocorticium (Corticiales), phylogenetic analyses of the nuclear large subunit ribosomal RNA gene place this taxon in the Rickenellaceae clade in the Hymenochaetales. Tsugacorticium kenaicum is described, illustrated, and compared to morphologically similar and phylogenetically related taxa.


Recognition of the Parmelia crozalsiana group as the genus Crespoa PDF
James C. Lendemer, Brendan P. Hodkinson 1-5

Recent molecular phylogenetic analyses of the lichen family Parmeliaceae have revealed that the members of the Parmelia crozalsiana group form a sister clade to one containing members of the genus Parmotrema. The four species in this group were classified first in Parmelia, then Pseudoparmelia, and later Canoparmelia. Recently, the classification of this group was resolved by placing the species in the newly-described Parmotrema subg. Crespoa. This placement was justified by an absence of characters from the fungal reproductive structures distinguishing members of the group from those classified in Parmotrema subg. Parmotrema. As this classification obfuscates a morphologically and phylogenetically discrete group of foliose macrolichens that has always been recognized as distinct from Parmotrema s. str., we here recognize the group as the genus Crespoa. A discussion of taxonomic rank assignment based on character-types that are preconceived as diagnostic is also provided.



Rare inland reindeer lichens at Mima Mounds in southwest Washington State PDF
R.J. Smith, R. Arvidson, G. Bono, B. Chipman, A. Corkery, J. DiMeglio, K. Hansen, K. Isch, J. McAlpine, C. Marks-Fife, B. Mead, D. Miller, N. Nolte, A. Ottombrino, T. Prior, J. Streich, S. Theis, S. Vandruff, C. Wesseler, K. Wesseler, M. Wiseman, B. McCune 1-25
Isolated populations of four reindeer lichen species and varieties co-occur in a unique relict prairie habitat at Mima Mounds Natural Area Preserve, southwest Washington State, USA. The prairie is the type locality for mima mounds, unusual geologic features providing topographical variation that influences vegetation patterns. Reindeer lichens (Cladonia subgenus Cladina) are usually more typical of northern boreal regions and are very rare in inland valley habitats of the western states outside of Alaska. Our study established distributional, ecological, chemotypic, and phylogenetic information for the target species. The species that at first appeared to be C. arbuscula was revealed by DNA sequences to be C. ciliata var. tenuis. We found that topography was not as important as recent fire history in explaining reindeer lichen distribution; in the future, prescribed fire is likely to benefit reindeer lichens so long as it preserves pockets of refugia as propagule sources. We also detected moderate air pollution stress, which is projected to have impacts on lichen abundances and community compositions in the near future. Chemotype analysis revealed 6 reindeer lichen chemotypes, of which 2 are rare (C. ciliata var. tenuis and C. portentosa subsp. pacifica f. decolorans). Phylogenetic analyses supported previous species concepts, showing C. portentosa is distinct from the closely-related group that includes C. rangiferina and two varieties of C. ciliata. We synthesized our findings to provide a key for distinguishing the reindeer lichens of Mima Prairie. We suggested that rare inland reindeer lichens may benefit from small prescribed burns and sowing of propagules in disturbed areas, as well as continued monitoring and designation as state sensitive species.


Gremmeniella balsamea sp. nov. on balsam fir in Canada PDF
Gaston Laflamme, Edgar Smerlis 1-14
Gremmeniella balsamea sp. nov. is described from specimens collected on balsam fir (Abies balsamea) in eastern Canada. This is a fungal pathogen specific to balsam fir. Until now, it was considered to be G. abietina var. balsamea, this variety including also a Gremmeniella fungus on spruces. Consequently, this new species causes changes in the taxonomy within the genus Gremmeniella.


A Checklist of the Lichens of the Beaver Dam Slope, Washington County, Utah, USA PDF
Gajendra Shrestha, Steven D. Leavitt, Monica W. Proulx, Lawrence A. Glacy, Christina Call, John Hendrickson, Larry L. St. Clair 1-7

The lichen flora of the extreme northeastern corner of the Mojave Desert was investigated during the spring of 2009. Collections were made from five sites on the Beaver Dam Slope in Washington Co., Utah, including the privately owned Lytle Ranch Preserve. We have identified 41 lichen-forming fungal species in 23 genera, including 30 saxicolous, 7 terricolous, and 4 corticolous taxa; including, 16 species recorded from Utah for the first time and 10 new records for the Mojave Desert. This study provides a baseline for documenting the distribution of common and sensitive lichen communities along a transition zone between the Mojave Desert, Great Basin, and Colorado Plateau. Key words: Lichens, floristics, Beaver Dam Slope, Mojave Desert.



Clonostachys rhizophaga and other fungi from chickpea debris in the Palouse region of the Pacific Northwest, USA PDF
F.M. Dugan, S.L. Lupien, W. Chen 1-11

In 2003, 2008 and 2009 isolates of Clonostachys sp.were recovered from post-harvest chickpea debris.  Representative isolates were identified as C. rhizophaga on the basis of 99% similarity of β-tubulin DNA sequences to those of the type strain and 100% similarity to representative strains, including isolates reported as highly aggressive on chickpea in Syria. In strong contrast to the report from Syria, our isolates of C. rhizophaga from the U.S. Pacific Northwest (PNW) did not induce severe wilt when artificially inoculated on seed of chickpea line ICC 12004, even at elevated temperatures. Two instances of wilt (1.3 % of all inoculated plants) and occasional, usually transient, negative effects on emergence were documented.  Chickpea debris was dominated by common saprobic fungi in Alternaria, Cladosporium and Ulocladium.  Mycoparasitic fungi isolated from chickpea debris included C. rhizophaga, Cephalotrichum stemonitis and Harzia verrucosa, the latter two documented from chickpea for the first time. C. rhizophaga is already proven as mycoparasitic on Ascochyta rabiei (the primary fungal pathogen of chickpea), but C. stemonitis did not prove mycoparasitic on that fungus, and H. verrucosa did not remain viable in culture. 



Surveying for biotic soil crust lichens of shrub steppe habitats in the Columbia Basin PDF
Heather T. Root, Bruce McCune 1-21

Arid lands of eastern Oregon and Washington support a great diversity of biotic soil crust organisms that are often overlooked in biotic inventories. Land managers are increasingly interested in incorporating these species in their surveys so that they can protect unique habitats and prevent uncommon species from becoming threatened. Current monitoring guidelines for rangeland health sometimes take into account the percent cover by soil crusts; however, there is very little guidance for surveying for uncommon species. Furthermore, because soil crust species and habitats are unfamiliar to most botanists, finding these species presents special challenges. We outline suggestions for future surveys with these goals.



Cortinarius pinophilus Soop in the Pacific Northwest of North America PDF
J. Ammirati, Kare Liimatainen, Tuula Niskanen, L. Wright, C.P. Robertson, C. Meyer, N. Machnicki, J. Birkebak, A. Allen 1-6

Cortinarius pinophilus is reported from western Washington and northwestern British Columbia. In Fennoscadia it occurs with Pinus sylvestris, however, in the Pacific Northwest the host trees are more diverse and include Pinus contorta, Tsuga heterophylla, and Pseudotsuga menziesii. A description of North American material is presented.



The Xylariaceae of the Hawaiian Islands PDF
Jack D. Rogers, Yu-Ming Ju 1-35

Keys, species notes, references, hosts, and collection locations of the following xylariaceous genera are included: Annulohypoxylon, Ascovirgaria, Biscogniauxia, Daldinia, Hypoxylon, Jumillera, Kretzschmaria, Lopadostoma, Nemania, Rosellinia, Stilbohypoxylon, Xylaria, and Xylotumulus. Camarops and Pachytrype--non-xylariaceous genera--are included. Anthostomella, well-covered elsewhere, is not included here. A Host-Fungus Index is included. A new name, Xylaria alboareolata, is proposed. All of the Hawaiian Islands are included, but Lanai was not visited.



A major range expansion for Platismatia wheeleri PDF
Jessica L. Allen, Brendan P. Hodkinson, Curtis R. Björk 1-12

Platismatia wheeleri was recently described as a species distinct from the highly morphologically variable Platismatia glauca. Previously, P. wheeleri was known only from intermountain western North America in southern British Columbia, Idaho, Montana, Oregon and Washington. After examining collections from the New York Botanical Garden and Arizona State University herbaria we discovered that P. wheeleri was collected in southern California and the Tatra Mountains of Slovakia. The morphology, ecology and biogeography of P. wheeleri are discussed, and the importance and utility of historical collections is highlighted. This article is intended to alert researchers to the potential presence of P. wheeleri in different regions of the world so we can better understand its historical and current distribution and abundance.



Calicium denigratum (Vain.) Tibell, a new lichen record for North America PDF
Richard Troy McMullin, Steve B. Selva, Jose R. Maloles, Steven G. Newmaster 1-5

Calicium denigratum was previously known from Europe and Siberia. It is reported here for the first time in North America from open canopy woodlands in northeastern Ontario and northeastern New Brunswick. Distinctions between the two species that are most similar, C. abietinum and C. glaucellum, are also presented.



Curvibasidium rogersii, a new yeast species in the Microbotryomycetes PDF
Tyler B. Bourret, Charles G. Edwards, Thomas Henick-Kling, Dean A. Glawe 1-8

Curvibasidium rogersii sp. nov. (Microbotryomycetes, Basidiomycota) is described on the basis of a strain (NRRL Y-48849) isolated from wine grapes (Vitis vinifera) in Washington state (USA). The taxonomic position of the strain was determined through analysis of the ITS region and the D1/D2 domains of the LSU rRNA gene. Physiological and morphological data also are presented. A basidial state was not observed.