Jerry Cooper

Boletopsis nothofagi is a fungus in the family Bankeraceae. The fungus forms grey fruit bodies that grow in clusters. Like all species of Boletopsis, it has a porous spore-bearing surface on the underside of the cap, but differs from other species of Boletopsis by having characteristics such as elongated spores and a green discoloration when stained with potassium hydroxide. Boletopsis nothofagi is endemic to New Zealand and has a mycorrhizal association with red beech (Nothofagus fusca). It is unknown when exactly the fungus forms its fruit body, but it has so far been found solely in May,

Porphyrellus formosus, the dark velvet bolete, is a species of bolete fungus in the family Boletaceae, first described as Tylopilus formosus by Greta Stevenson in 1962, and moved to Porphyrellus genus in 2014 by J. A. Cooper. It is endemic to New Zealand, forming mycorrhiza with southern beeches and mānuka. Its distinguishing feature is all-black and velvety surface of cap and stalk. It initially has white pores that turn golden when aged.

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Psathyloma is a genus of three species of mushroom-forming fungi in the family Hymenogastraceae. Used informally among New Zealand-based mycologists since 1997, the genus was formally circumscribed in 2016 with Psathyloma leucocarpum as the type species. The genus name, which combines Psathyrella and Hebeloma, alludes to the morphological similarity of the fruit bodies. Species in the genus Psathyloma are found in New Zealand, where they fruit on the ground in Nothofagus forests.

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Lactifluus aurantioruber is a species of mushroom in the family Russulaceae. It originally described by McNabb as Lactifluus clarkeae var. aurantioruber in 1971, named for its reddish-orange colour. Jerry A. Cooper raised this variety to species-rank in 2021, thus acquiring the name Lactifluus aurantioruber. The type locality is Tongariro National Park, New Zealand.

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Hericium novae-zealandiae is a species of fungus in the Hericiaceae family. Formerly classified as Hericium coralloides which shares an almost identical morphology. Being saprotrophic, H. novae-zealandiae can be observed growing from dead, decaying wood. Also known as pekepekekiore, it is endemic to New Zealand and was consumed by indigenous Māori.

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Clavogaster virescens is a species of secotioid or pouch-like fungus in the family Strophariaceae. It is endemic and indigenous to New Zealand, where it grows on rotting wood in native bush and mixed native and introduced forests. It has a stout yellowish stem, and a powder blue, purplish or greenish blue cap that forms a pouch, often referred to as a peridium, enclosing reddish brown or orange chambered gleba. The species is sometimes known as the "Spindle Pouch".

Bondarzewia kirkii is a species of polypore fungus in the family Russulaceae that is endemic to the beech forests of New Zealand. It is named after British mycologist Paul Michael Kirk.

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