Lewis David de Schweinitz

Amanita porphyria, also known as the grey veiled amanita or the porphyry amanita, is a fairly common, inedible mushroom of the genus Amanita found in Europe and North America.

Physarum polycephalum, an acellular slime mold, or myxomycete, is an amoeba with diverse cellular forms and broad geographic distribution. The "acellular" moniker derives from the plasmodial stage of the life cycle: the plasmodium is a bright yellow macroscopic multinucleate coenocyte shaped in a network of interlaced tubes. This stage of the life cycle, along with its preference for damp shady habitats, likely contributed to the original mischaracterization of the organism as a fungus. P. polycephalum is used as a model organism for research into motility, cellular differentiation,

Erysiphe necator, synonym Uncinula necator, is a fungus that causes powdery mildew of grape. It is a common pathogen of Vitis species, including the wine grape, Vitis vinifera. The fungus is believed to have originated in North America. European varieties of Vitis vinifera are more or less susceptible to this fungus. Erysiphe necator infects all green tissue on the grapevine, including leaves and young berries. It can cause crop loss and poor wine quality if untreated. The sexual stage of this pathogen requires free moisture to release ascospores from its cleistothecia in the spring. However,

Pisolithus is a genus of fungi within the family Sclerodermataceae (suborder Sclerodermatineae).

Peziza varia, commonly known as the spreading brown cup fungus, Palomino cup or recurved cup, is a species of fungus in the genus Peziza, family Pezizaceae.

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Amanita farinosa, commonly known as the floury amanita, eastern American floury amanita or the American floury amanita, is a North American poisonous mushroom of the genus Amanita, a genus of fungi including some of the most deadly mushrooms.

Puccinia sorghi, or common rust of maize, is a species of rust fungus that infects corn and species from the plant genus Oxalis.

Puccinia helianthi is a macrocyclic and autoecious fungal plant pathogen that causes rust on sunflower. It is also known as "common rust" and "red rust" of sunflower.

Cantharellus cinnabarinus, the red chanterelle, is a species of fungus. It is a member of the genus Cantharellus along with other chanterelles. Its distinctive red color is imparted by the carotenoid canthaxanthin. Widely distributed in eastern Northern America, it fruits in association with hardwood trees in the summer and fall.

Arachnion is a genus of gasteroid fungi in the family Agaricaceae.

Gymnosporangium juniperi-virginianae is a plant pathogen that causes cedar-apple rust. In virtually any location where apples or crabapples (Malus) and eastern red cedar (Juniperus virginiana) coexist, cedar apple rust can be a destructive or disfiguring disease on both the apples and cedars. Apples, crabapples, and eastern red cedar are the most common hosts for this disease. Similar diseases can be found on quince and hawthorn and many species of juniper can substitute for the eastern red cedars.

Geastrum minimum, the tiny earthstar, is an inedible species of mushroom belonging to the genus Geastrum. Although rare, it is widespread in Europe, where it occurs in a range of habitats. It is a priority species in the UK, where it has been found in the sand dunes at Holkham National Nature Reserve. The species was first described by Lewis David de Schweinitz in 1822.

Puccinia xanthii is a fungal pathogen of plants in the Asteraceae, and can infect hosts from at least 42 genera within that family, most notably species in the Xanthium and Ambrosia genera. This pathogen was discovered growing on Xanthium strumarium in North Carolina, United States in 1822. Common names of P. xanthii include Summer Rust and Cocklebur Rust.

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Powdery mildew of lilac, or Erysiphe syringae (formerly Microsphaera syringae) is a fungal pathogen of lilacs.

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Polyporus radicatus is a species of fungus in the family Polyporaceae. It was described as new to science by German-American botanist Lewis David de Schweinitz in 1832. It is found in North America, including Mexico. It grows on the ground, probably from buried roots or originating from sclerotia. Its spores are more or less ellipsoid to spindle shaped, measuring 12–15 by 6–8 μm. It is inedible.

Phlebia coccineofulva, commonly known as the scarlet waxcrust, is a species of crust fungus in the family Meruliaceae. It was described as a new species by Lewis David de Schweinitz in 1832. The fungus is found in North America, continental Europe, and northern Asia, where it grows as a saprophyte on decaying stumps and woody forest debris.

Clasterosporium is a genus of fungi in the family Magnaporthaceae.

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