James Colin Lendemer

Ramonia vermispora is a species of saxicolous (rock-dwelling) and crustose lichen in the family Gyalectaceae. Found in the Sonoran Desert region of the southwestern United States, it was formally described as a new species in 2008 by lichenologists James Lendemer and Karry Knudsen. The type specimen was collected in San Bernardino National Forest (Riverside County, California), at an elevation of 1,655 m (5,430 ft); here it was found growing on granitic rock in a shaded rocky outcrop in a woodland. The lichen is only known to occur at the type locality, which is part of the San Jacinto

Punctelia caseana is a species of foliose lichen in the family Parmeliaceae. Its range covers eastern North America, extending south to central and northern Mexico, where it grows on the bark of many species of hardwood and conifer trees.

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Leprocaulaceae is a family of mostly lichen-forming fungi. It is the single family in the monotypic order Leprocaulales. Leprocaulaceae contains three genera and about 33 species.

Lepraria friabilis is a species of leprose lichen in the family Stereocaulaceae. It has a disjunct distribution in the southeastern United States and southern California, where it grows exclusively on coniferous bark in humid environments such as swamps and stream valleys.

Helocarpon erraticum is a species of crustose lichen in the family Ectolechiaceae. It grows mainly on siliceous rock and is a widely distributed species.

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Placidium arboreum, commonly known as the tree stipplescale, is a species of corticolous (bark-dwelling), squamulose (scaley) lichen in the family Verrucariaceae. Placidium arboreum is primarily found in the southeastern United States, but it also has occurrences in the western and northeastern United States, Mexico, the West Indies, Argentina, and Ontario, Canada. In its habitat, it typically grows at the base of hardwood trees, particularly oak species, and can occasionally be found on other tree genera or even over mosses on limestone. Its preferred substrate is the bark of oak trees, and

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Crespoa is a genus of five species of lichen in the family Parmeliaceae. Species in this genus are characterized by having an upper thallus surface that is wrinkled and reticulately ridged to coarsely foveolate (having small pits or depressions).

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Andreiomyces is the sole genus in Andreiomycetaceae, a family in the order Arthoniales. Andreiomyces contains two lichen-forming fungi, both of which were previously classified in the genus Lepraria.

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Punctelia eganii is a rare species of foliose lichen in the family Parmeliaceae. It was described in 2011 from a single population found in a beech-magnolia forest along the Alabama River and was named in honor of American lichenologist Robert S. Egan. The lichen appears very similar to the common species Punctelia rudecta, but can be distinguished by tiny white pores that glow bright yellow under ultraviolet light due to the chemical compound lichexanthone, otherwise unknown to occur in the genus. It is known only from its original discovery site in coastal Alabama, where habitat destruction

Piccolia nannaria is a species of crustose lichen in the class Lecanoromycetes. It is widespread but uncommon in the coastal plain of southeastern North America. Initially thought to be corticolous (bark-dwelling), later collection of the lichen suggest that it may be lichenicolous (lichen-dwelling).

Peltigera hydrothyria, commonly known as the waterfan, is a relatively rare aquatic lichen in the family Peltigeraceae, native to North America. It grows in cold, clean mountain streams, where it attaches to rocks and bedrock in shaded, riparian habitats. First described in 1856 as Hydrothyria venosa, it was initially placed in its own genus due to its distinctive gelatinous thallus and aquatic lifestyle. Molecular studies later demonstrated its affinity with the genus Peltigera, leading to its reclassification in 2000. The lichen forms small, blackish rosettes with ruffled margins and

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Leprocaulaceae is a family of mostly lichen-forming fungi. It is the single family in the monotypic order Leprocaulales. Leprocaulaceae contains three genera and about 33 species.

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