John Ingram Pitt

Bettsia is a genus of fungi within the Ascosphaeraceae family. This is a monotypic genus, containing the single species Bettsia alvei. Alvei was first described by Annie Betts and this genus is named for her.

Penicillium lehmanii is a species of the genus of Penicillium.

Metschnikowia pulcherrima is a ubiquitous species of yeast, with numerous strains, belonging to the family Metschnikowiaceae, and found on grapes, cherries, flowers, spoiled fruit and consequently carried by fruit flies. It is a non-Saccharomyces yeast and plays an important role in the vinification of wine when it is present on grapes or winery equipment, and has historically seen use in South Africa’s wine industry. It is also being studied at the University of Bath as a possible alternative to the use of Palm oil, and early results show promise. M. pulcherrima is ovoid to ellipsoidal in

Geosmithia is a genus of anamorphic fungi of uncertain familial placement in the order Hypocreales. The genus, circumscribed by Australian mycologist John Pitt in 1979, is widely distributed. A 2008 estimate placed ten species in the genus, but several new species have since been described. Thousand cankers disease, which affects economically important black walnut (Juglans nigra) populations in North America, is caused by Geosmithia morbida. Species in the genus are generally similar to those in Penicillium, but can be distinguished from them by forming cylindrical conidia from rough-walled

Penicillium vanbeymae is an anamorph species of fungus in the genus Penicillium. It is described as blue to yellow mold.

Penicillium sphaerum is a species of fungus in the genus Penicillium which was isolated from wood in Panama.

Penicillium rasile is a species of fungus in the genus Penicillium.

Penicillium patens is an anamorph species of the genus of Penicillium.

Penicillium oblatum is an anamorph species of fungus in the genus Penicillium.

Penicillium nilense is a species of fungus in the genus Penicillium.

Penicillium molle is an anamorph species of the genus Penicillium.

Penicillium lineatum is a species of the genus of Penicillium.

Penicillium klebahnii is a species of the genus of Penicillium.

Penicillium gossypii is a species of the genus of Penicillium.

Penicillium dodgei is a species of the genus of Penicillium.

Penicillium corynephorum is an anamorph species of the genus of Penicillium.

Penicillium chalybeum is a fungus species of the genus of Penicillium which was isolated from dried fish in Sri Lanka discovered in the 1980's.

The foamy bark canker is a disease affecting oak trees in California caused by the fungus Geosmithia sp. #41 and spread by the Western oak bark beetle (Pseudopityophthorus pubipennis). This disease is only seen through the symbiosis of the bark beetles and the fungal pathogen. The bark beetles target oak trees and bore holes through the peridermal tissues, making tunnels within the phloem. The fungal spores are brought into these tunnels by the beetles and begin to colonize the damaged cells inside the tunnels. Symptoms of the developing fungus include wet discoloration seeping from the

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Penicillium vagum is a species of fungus in the genus Penicillium which was isolated from an air sample in the Stellenbosch Mountains in Western Cape in South Africa.