Frederic Clements

Rusts are fungal plant pathogens of the order Pucciniales (previously known as Uredinales) causing plant fungal diseases. An estimated 168 rust genera and approximately 7,000 species, more than half of which belong to the genus Puccinia, are currently accepted. Rust fungi are highly specialized plant pathogens with several unique features. Taken as a group, rust fungi are diverse and affect many kinds of plants. However, each species has a range of hosts and cannot be transmitted to non-host plants. In addition, most rust fungi cannot be grown easily in pure culture. Most species of rust

Dibaeis is a genus of lichen-forming fungi in the family Icmadophilaceae. The genus is widely distributed in tropical regions. Dibaeis was circumscribed in 1909 by Frederic Edward Clements with Dibaeis rosea as the type species. Several species were transferred from other genera in a 1993 publication.

The Micropeltidaceae are a family of fungi with an uncertain taxonomic placement in the class Dothideomycetes.

The Graphiolaceae are a family of fungi in the Basidiomycota, Exobasidiales order. Species in the family have a widespread distribution, especially in warm temperate and tropical areas. Members of the Graphiolaceae are plant pathogens that grow biotrophically on the leaves of plants in the Palmae family.

Pronectria is a genus of fungi in the family Bionectriaceae. It consists of 44 species, all of which are lichenicolous. The genus was circumscribed by American plant ecologist Frederic Clements in 1931.

Dirinaria is a genus of lichenized fungi in the family Caliciaceae. The genus has a widespread distribution, especially in tropical regions, and contains about 35 species.

Pezoloma is a genus of fungi within the Leotiaceae family.

Acanthothecis is a genus of lichen-forming fungi in the family Graphidaceae. The genus was circumscribed by Frederick Edward Clements in 1909. These lichens form pale grey-brown to olive-green crusts on tree bark and are characterized by elongated, pencil-like slits containing spores, with distinctive tiny spines on internal filaments that help distinguish them from similar genera. The genus includes about 50 species found primarily in tropical and subtropical forests worldwide, where they grow on living tree bark and serve as indicators of relatively undisturbed woodland environments.

Graphyllium is a genus of fungi in the family Diademaceae.

Epilichen is a small genus of lichen-forming fungi in the family Rhizocarpaceae. These parasitic lichens live on other lichens, beginning as thin, crust-like patches that may break into small islands or scales, and in some cases produce no visible body at all except for their reproductive structures. They reproduce through black, disc-shaped fruiting bodies that contain distinctive brown spores with a "doughnut ring" appearance, and can eventually take over the space occupied by their host lichen once it dies.

Didymellopsis is a genus of lichenicolous (lichen-dwelling) fungi in the family Xanthopyreniaceae.

Byssolophis is a genus of fungi in the family Lophiostomataceae.

Sphaerodes is a genus of fungi within the Coronophorales order but it has not been placed within a family.

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Naeviella is a genus of fungi in the family Calloriaceae. It has three species. The genus was circumscribed by American plant ecologist Frederic Clements in 1909.

Lasiosphaeris is a genus of fungi in the Sordariomycetes class (subclass Sordariomycetidae) of the Ascomycota. The relationship of this taxon to other taxa within the class is unknown (incertae sedis), and it has not yet been placed with certainty into any order or family.

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Discostroma is a genus of fungi in the family Amphisphaeriaceae.

Dirinaria picta is a species of lichen within the family Caliciaceae, classified under the order Caliciales in the class Lecanoromycetes of the division Ascomycota.

Comoclathris is a genus of fungi in the family Diademaceae.

Chaetoplea is a genus of fungi in the Leptosphaeriaceae family. As accepted by Wijayawardene et al. 2020; It was earlier placed in the family Phaeosphaeriaceae in 2007.

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