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Porpidia soredizodes (lichenized ascomycota) in North America.
Vol 4, Page 1
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Lepraria adhaerens: a new species from North America.
Vol 4, Page 5
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New or interesting lichenicolous heterobasidiomycetes.
Vol 4, Page 11
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Contributions to the lichen flora of Maryland: Recent collections from the Delmarva Peninsula.
Vol 4, Page 23
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Megalaria beechingii (lichenized ascomycota), a new species from eastern North America.
Vol 4, Page 39
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Lepraria normandinoides, a new widespread species from eastern North America.
Vol 4, Page 45
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Notes on lichen genus Lepraria in Great Smoky Mountains National Park, southeastern North America: Lepraria lanata and L. salazinica spp. nov.
Vol 4, Page 51
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Dimelaena tenuis (lichenized Ascomycota) new to North America, and Xanthoparmelia pseudocongensis new to Georgia, USA.
Vol 4, Page 55
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New taxa of lichens and lichenicolous fungi from the Ozark ecoregion.
Vol 4, Page 57
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Lichens of eastern North America Exsiccati, Fascicle V, Nos. 201 - 250.
Vol 4, Page 69
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Literature review
Vol 4, Page 81
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Index of new taxa proposed in vol. 4
Vol 4, Page 83