Gregory M. Mueller

Tylopilus bulbosus is a bolete fungus of the genus Tylopilus. Described as new to science in 2001 by mycologists Roy Halling and Greg Mueller, it is found in Costa Rica, where it grows on the ground in montane forests dominated by the oak species Quercus copeyensis, Q. oocarpa, and Q. seemannii. The fungus produces fruit bodies with convex to flattened caps measuring 4.5–11 cm (1.8–4.3 in) in diameter. Its color is initially violet to purplish brown, and eventually fades to brown. The pore surface is initially pale pinkish purple to grayish red, and bruises brown where it has been handled.

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Laccaria amethysteo-occidentalis is a mushroom found under conifers, usually pine, growing alone, scattered or gregariously in western North America.

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Boletus quercophilus is a species of porcini-like fungus native to Costa Rica, where it grows under Quercus copeyensis and Quercus seemannii.

Cantharellus chicagoensis, the Chicago chanterelle, is a species of Cantharellus from United States.

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Harrya atriceps is a rare species of bolete fungus. Described as new to science in 2012, it is found in the Cordillera Talamanca of Costa Rica, where it grows in a mycorrhizal association with the oak species Quercus copeyensis and Quercus seemannii. Compared to its much more common and widespread relative, Harrya chromapes, H. atriceps has a black cap and lacks pinkish colors in its stipe scabers, but it does have a yellowish stipe base. Its smooth, fusoid spores measure 9.1–11.9 by 4.2–6.3 μm.

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Hymenopellis furfuracea is a species of mushroom found in North America. It grows around dead wood.

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