Fungi named in 1819

Rhytisma acerinum is a plant pathogen that commonly affects sycamores and maples in late summer and autumn, causing tar spot. Tar spot does not usually have an adverse effect on the trees' long-term health. R. acerinum is an Ascomycete fungus that locally infects the leaves of trees and is a biotrophic parasite. The disease is cosmetic and is therefore usually controlled only with sanitation methods.

Sparassis (also known as cauliflower mushroom) is a genus of parasitic and saprobic mushroom characterised by its unique shape and appearance and is found around the globe. Its appearance can be described as similar to a sea sponge, a brain or a head of cauliflower, hence its popular name. It is increasingly cultivated and sold in Korea, Japan, the United States and Australia. The generic name comes from the Greek sparassein, meaning to tear.

Bangia is an extant genus of division Rhodophyta that grows in marine or freshwater habitats. Bangia has small thalli with rapid growth and high reproductive output, and exhibits behavior characteristic of r-selected species. The plants are attached by down-growing rhizoids, usually in dense purple-black to rust-colored clumps. The chloroplasts of Bangia, like others in the division Rhodophyta, contain chlorophyll a and sometimes chlorophyll d, as well as accessory pigments such as phycobilin pigments and xanthophylls. Depending on the relative proportions of these pigments and the light

Diachea is a genus of slime molds belonging to the family Didymiaceae. The genus was first described in 1825 by Elias Magnus Fries. The genus has a cosmopolitan distribution.

Sclerococcum is a genus of lichenicolous fungi in the family Dactylosporaceae.

Stereocaulon incrustatum is a species of snow lichen belonging to the family Stereocaulaceae. Forms and varieties: Stereocaulon incrustatum f. gracile Stereocaulon incrustatum f. gracilis Stereocaulon incrustatum f. incrustatum Stereocaulon incrustatum var. abduanum Stereocaulon incrustatum var. elaturn Stereocaulon incrustatum var. incrustatum

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Lecidea tessellata is a species of saxicolous (rock-dwelling), crustose lichen in the family Lecideaceae. It was formally described as a species in 1819 by German botanist Heinrich Flörke.

Enteridium is a genus of slime molds belonging to the family Dianemataceae. It was formerly included in the Reticulariaceae and in some sources is listed as a synonym of Reticularia Bulliard, 1788, however recent work confirms it as a separate genus and removes it from that family (and the latter's containing order) and places it in the order Trichiales, family Dianemataceae.

Stereocaulon dactylophyllum is a species of saxicolous (rock-dwelling), fruticose lichen in the family Stereocaulaceae. It was first scientifically described by Heinrich Gustav Flörke in 1819. Flörke mentions that the original specimens were collected in 1797 on mossy rocks at the Rehberger Graben and near Sankt Andreasberg on the Harz Mountains, and also on the Fichtel Mountains. It is now known to be widely distributed, having been recorded in Asia, Europe, Greenland, eastern Canada, and the eastern and central United States. The lichen is characterised morphologically by the coralloid,

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Anixia is a genus of fungi that belongs to the Agaricomycetes class; it is not assigned to an order or a family. The Anixia genus consists of twelve fungi species. The genus was first documented in 1819 by Swedish mycologist Elias Magnus Fries.

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Anixia nemoralis is a species of fungus belonging to the Anixia genus. It was documented in 1819 by Swedish mycologist Elias Magnus Fries.

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