Fungi named in 1840

Geastrum triplex is a species of fungus commonly known as the collared earthstar, the saucered earthstar, or the triple earthstar—and less commonly by the alternative species name Geastrum indicum. It is the largest member of the genus Geastrum (or earthstar fungi) and expanded mature specimens can reach up to 11.5 centimeters (4+1⁄2 in) across. Immature fruit bodies are spherical—somewhat resembling puffballs with pointed beaks—and are partially or completely buried in the ground. As the fungus matures, the outer layer of tissue (the exoperidium) splits into four to eight pointed segments

Secotium is a genus of fungi in the family Agaricaceae. The members of this genus are closely related to ordinary Agaricus mushrooms, but do not open out in the usual way; this has given rise to the term "secotioid" for such mushrooms in general. They are thought to form an evolutionary link between agarics and gasteroid fungi (whose spores are enclosed in a pouch-like structure). Secotium is a widespread genus, with species that are predominantly found in warm and arid regions.

Chrysomyxa is a genus of rust fungi in the family Coleosporiaceae. The genus, widespread in the Northern Hemisphere, contains about 23 species. Rust fungi in the genus Chrysomyxa occur in boreal forests of the northern hemisphere on Pinaceae, (mostly Picea), and most species alternate to angiosperm hosts in the Ericaceae.

Chrysomyxa abietis, or spruce needle rust, is a species of rust fungi in the Coleosporiaceae family that is native to eastern Europe (including Siberia) and northern Asia. It was introduced to Australia, New Zealand and the United States.

Gliocladium is an asexual fungal genus in the Hypocreaceae. Certain other species including Gliocladium virens were recently transferred to the genus Trichoderma and G. roseum became Clonostachys rosea f. rosea in the Bionectriaceae. Gliocladium is a mitosporic, filamentous fungus. Species of Gliocladium rarely produce a sexual state. Most pathogenic, disease-causing fungi in humans are mitosporic like Gliocladium. Gliocladium is filamentous; it grows tubular, elongated, and thread-like. It can be considered a contaminant.

Coniothyrium is a genus of fungi in the family Coniothyriaceae. The genus was circumscribed by Czech mycologist August Carl Joseph Corda in 1840. It was formerly placed in the Phaeosphaeriaceae family until 1983 when the family was established. The genus are diverse geographically, and have a cosmopolitan distribution across the world. The etymology of Coniothyrium is derived from New Latin, from coni- (from conus) and thyr- (from Greek thyreos meaning oblong shield, from thyra meaning door) and -ium (ending for a genus). Coniothyrium palmarum is the type species of the genus Coniothyrium. It

Cymatoderma is a widely distributed genus of poroid fungi in the family Meruliaceae.

Cordierites is a genus of fungi in the family Cordieritidaceae. The genus name of Cordierites is in honour of François Simon Cordier (1797-1874), a French military doctor and botanist (Mycology), he was a founder member and president of the Société botanique de France in 1872. The genus was circumscribed by Jean Pierre François Camille Montagne in Ann. Sci. Nat. Bot. ser. 2, Vol.14 on page 330 in 1840.

Puccinia carthami is a plant pathogen that causes rust on safflower.

Polyporus leprieurii is a species of poroid fungus in the genus Polyporus. It was first described scientifically by French mycologist Camille Montagne. It is found in tropical to subtropical areas of America and Eastern Asia, where it grows on dead hardwood that is lying on the ground, or on hanging branches.

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Cymatoderma elegans is a fungus species in the genus Cymatoderma. The type specimen was found on at 4,000 m (13,000 ft) on Mount Panggerangi, on Java Island, Indonesia. Name brought to synonymy Cymatoderma elegans subsp. infundibuliforme (Klotzsch) Boidin 1960, a synonym of Cymatoderma infundibuliforme

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Microthyrium is a genus of fungi in the Microthyriaceae family.

Leptogium burgessii is a species of foliose lichen in the family Collemataceae. The species was originally described by Carl Linnaeus in 1774 and transferred to Leptogium by Camille Montagne in 1840. It forms leafy greyish to brownish patches distinguished by a velvety lower surface covered with short cream-coloured hairs composed of spherical cells. In Europe, L. burgessii has an oceanic Atlantic distribution, occurring from the Canary Islands through north-western Iberia to south-western Norway, where it grows on tree bark and mossy rocks in humid forests. The lichen requires high air

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Dilophospora is a genus of fungi belonging to the order Dothideomycetes, in the family Sporocadaceae. The species of this genus are found in Europe, Japan, northern America and Australia. Species: Dilophospora alopecuri (Fr.) Fr. (1849) Dilophospora stiparum Speg. (1902) Former species; D. albida Massee & Crossl. (1904) = Ciliospora albida, Sebacinaceae D. caricum (Desm.) Fuckel (1870) = Neottiospora caricum, Ascomycota D. chilensis Speg. (1910) = Plectronidiopsis chilensis, Ascomycota D. geranii J. Schröt. (1880) = Neottiospora geranii, Ascomycota D. graminis Desm. (1840) = Dilophospora

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Botryosporium pulchrum is an ascomycete fungus that is a plant pathogen. It was described by August Carl Joseph Corda in 1840. It causes leaf mold in geraniums.

Pemphidium is a genus of fungi in the family Amphisphaeriaceae; according to the 2007 Outline of Ascomycota, the placement in this family is uncertain.

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