Terry W. Henkel

Pseudotulostoma is a genus of fungi in the family Elaphomycetaceae. The genus contains two species; one found in Guyana and one in Japan.

Clavulina dicymbetorum is a species of coral fungus in the family Clavulinaceae. Described as new to science in 2005, it occurs in Guyana.

Guyanagaster is a genus of fungi in the family Physalacriaceae. The genus contains two wood-decaying sequestrate species Guyanagaster necrorhizus and Guyanagaster lucianii. The species, found in the neotropical rainforests of the Guiana Shield, was first described scientifically in 2010.

Clavulina nigricans is a species of coral fungus in the family Clavulinaceae. It produces large, highly branched black fruit bodies that measure 12–19 cm (4.7–7.5 in) tall by 9–13.5 cm (3.5–5.3 in) wide. It is found only in Guyana.

Clavulina humicola is a species of coral fungus in the family Clavulinaceae. It occurs in Guyana.

Clavulina griseohumicola is a species of fungus in the family Clavulinaceae. Described as new to science in 2005, it occurs in Guyana.

Clavulina craterelloides is a species of coral fungus in the family Clavulinaceae. Known only from Guyana, it was described in 2004. The fruit bodies are large, orange-brown in color, and funnel-shaped, occurring in groves of Dicymbe trees.

Clavulina caespitosa is a species of coral fungus in the family Clavulinaceae. Found in Guyana, it was described as new to science in 2005.

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Craterellus excelsus is a species of fungus in the family Cantharellaceae. Reported as a new species in 2009, it was originally collected from the Pakaraima Mountains of Guyana. The species is found in rainforests that are composed predominantly of Dicymbe species. C. excelsus has fruit bodies that may be up to 15 cm (6 in) in height and grow in dense clusters.

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Tylopilus rufonigricans is a bolete fungus in the family Boletaceae found in the Pakaraima Mountains of Guyana. It was described as new to science in 1999 by mycologist Terry Henkel. Its fruit bodies have convex to flattened caps measuring 4–12 cm (1.6–4.7 in) in diameter; caps can form a central depression in age. The cap surface is covered with black scales, while the surface between the scales is initially greenish yellow, and later dull green and eventually greyish black. The flesh turns reddish when it is cut or injured. Tubes on the cap underside are 5–7.5 mm long, and there are 2–3

Tylopilus orsonianus is a bolete fungus of the genus Tylopilus. It is found in the Pakaraima Mountains of Guyana, where it fruits singly to scattered on root mats of forests dominated by the tree Dicymbe corymbosa. It was first described scientifically in 2007 by Tara Fulgenzi and Terry Henkel. The species epithet honors American mycologist Orson K. Miller, Jr. Fruit bodies of the fungus have velvety brown convex to flattened caps typically measuring 2.6–6.6 cm (1.0–2.6 in) in diameter. The spore print is flesh pink; the smooth spores are ellipsoid to somewhat fuse-shaped (subfusoid),

Tylopilus exiguus is a small bolete fungus in the family Boletaceae found in the Pakaraima Mountains of Guyana. It was described as new to science in 1999 by mycologist Terry Henkel. Its fruit bodies have dark olive-green caps measuring 1–3 cm (0.4–1.2 in) in diameter. The tubes on the cap underside are 1–3 mm long, and there are 1–1.5 angular pores per mm. The stipe measures 1–3 cm (0.4–1.2 in) long by 2–4 mm thick. The spore print is dark reddish brown; spores are roughly spindle-shaped (subfusoid) with dimensions of 10–13 by 4–5 μm. T. exiguus fruits singly or in small groups on humus and

Cortinarius altissimus is a fungus native to Guyana. It was described in 2015 by Emma Harrower and colleagues, and is closely related to the northern hemisphere species Cortinarius violaceus.

Clavulina tepurumenga is a species of fungus in the family Clavulinaceae. Found in Guyana, it was described as new to science in 2010.

Boletellus piakaii is a species of fungus in the family Boletaceae. It was found in Guyana and described in 2008.

Boletellus exiguus is a species of bolete fungus in the family Boletaceae. Found in the tropical forests of western Guyana, it was reported as new to science in 2008. The specific epithet exiguus derives from the Latin word for "small", referring to the small basidiocarps.

Boletellus dicymbophilus is a species of fungus in the family Boletaceae. Found in Guyana, it was described as new to science in 2008.

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Sarcodon pakaraimensis is a species of tooth fungus in the family Bankeraceae. Found in Guyana, where it grows in mixed Pakaraimaea–Dicymbe forest, it was described as new to science in 2015. It is differentiated from other Sarcodon species by its smooth to pitted, pinkish-gray cap that stains black, its hollow stipe, and the pink staining reaction of injured flesh. Its spores measure 5–7 μm long by 5–9 μm wide. They make a fresh dark reddish-brown spore print, which tends to lighten to yellowish brown when it is dry. Molecular analysis of DNA sequences shows the fungus to be closely related

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Russula campinensis is a neotropical species in the genus Russula. This species is highly different from most other known Russula species in that it has very small (2–17 mm), pleurotoid fruitbodies that develop on tree trunks in up to 2 m elevation from the forest floor. It was described as Lactarius campinensis from Brazil (Amazonas) by Rolf Singer. T.W. Henkel, M.C. Aime and S.L. Miller later found this species in tropical rainforest of the Pakaraima Mountains, Guyana, and showed with molecular phylogenetic methods that it belongs to Russula. Although forming fruitbodies on wood, R.

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