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Front Matter, Vol. 53 No. 1

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Introduction to the symposium on soil crust communities
Larry L. St. Clair and Jeffrey R. Johansen

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Lichens of soil crust communities in the Intermountain Area of the western United States
Larry L. St. Clair, Jeffrey R. Johansen, and Samuel R. Rushforth

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Bryophytes on the calcareous soils of Mungo National Park, an arid area of southern central Australia
A. J. Downing and P. M. Selkirk

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Microbial spatial heterogeneity in microbiotic crusts in Colorado National Monument. I. Algae
Anne E. Grondin and Jeffrey R. Johansen

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Microbial spatial heterogeneity in microbiotic crusts in Colorado National Monument. II. Bacteria
Catherine Cole Wheeler, Valerie R. Flechtner, and Jeffrey R. Johansen

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Soil microstructure in soils of the Colorado Plateau: the role of the cyanobacterium Microcoleus vaginatus
Jayne Belnap and John S. Gardner

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Cryptogams, vascular plants, and soil hydrological relations: some preliminary results from the semiarid woodlands of eastern Australia
D. J. Eldridge

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Cyanobacteria and cyanolichens: can they enhance availability of essential minerals for higher plants?
Kimball T. Harper and Rosemary L. Pendleton

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Effects of rangefire on soil algal crusts in semiarid shrub-steppe of the Lower Columbia Basin and their subsequent recovery
Jeffrey R. Johansen, John Ashley, and William R. Rayburn

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Recovery rates of cryptobiotic crusts: inoculant use and assessment methods
Jayne Belnap

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End Matter, Vol. 53 No. 1

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Full Issue, Vol. 53 No. 1