Synonyms: Boletus rugosiceps, Krombholzia rugosiceps, Krombholziella rugosiceps.
Common names: Wrinkled Leccinum, wrinkled bolete.
Extract from Wikipedia article: Leccinum rugosiceps, commonly known as the wrinkled Leccinum, is a species of bolete fungus. It is found in Asia, North America, Central America, and South America, where it grows in an ectomycorrhizal association with oak. Fruitbodies have convex, yellowish caps up to 15 cm (5.9 in) in diameter. In age, the cap surface becomes wrinkled, often revealing white cracks. The stipe is up to 10 cm (3.9 in) long and 3 cm (1.2 in) wide, with brown scabers on an underlying yellowish surface. It has firm flesh that stains initially pinkish to reddish and then to grayish or blackish when injured. The pore surface on the cap underside is yellowish. Fruitbodies are edible, although opinions vary as to their desirability.
Leccinum rugosiceps is a species of bolete fungus characterized by its medium to large size, brown to tan cap with fine, wrinkled or reticulated surface, and white to pale yellow pores. The stem is typically stout, white to pale brown, and covered in fine, dark brown to black scabers. In East and Central Texas, Leccinum rugosiceps has been found growing in association with oak trees, particularly live oak and post oak, in a variety of habitats including woodland edges, savannas, and riparian areas. Fruiting typically occurs from spring to fall, with peak activity during the late spring and early summer months.
Bolete mushrooms Leccinum rugosiceps(?) near a sandy road in an oak forest in Lick Creek Park. College Station, Texas, May 31, 2018
Bolete mushrooms Boletus pallidus and Leccinum rugosiceps(?) in Lick Creek Park. College Station, Texas, July 18, 2018
Caps of bolete mushrooms Leccinum rugosiceps(?) in Lick Creek Park. College Station, Texas, July 18, 2018
Pore surface of bolete mushrooms Leccinum rugosiceps(?) in Lick Creek Park. College Station, Texas, July 18, 2018
Large number of bolete mushrooms Leccinum rugosiceps(?) in Lick Creek Park. College Station, Texas, July 18, 2018
Underside of bolete mushrooms Leccinum rugosiceps in Lick Creek Park. College Station, Texas, June 28, 2019
Side view of bolete mushrooms Leccinum rugosiceps in Lick Creek Park. College Station, Texas, July 5, 2019
Wrinkled Leccinum mushrooms (Leccinum rugosiceps) under post oaks in Lick Creek Park. College Station, Texas, May 15, 2022
Spores of mushrooms Leccinum rugosiceps (spore print dark brown) collected in Lick Creek Park. College Station, Texas, May 15, 2022
Top view of wrinkled bolete mushrooms (Leccinum rugosiceps) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, September 15, 2024
Wrinkled bolete mushrooms (Leccinum rugosiceps) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, September 15, 2024
Section of wrinkled bolete mushrooms (Leccinum rugosiceps) on Stubblefield section of Lone Star hiking trail north from Trailhead No. 6 in Sam Houston National Forest. Texas, September 15, 2024In East and Central Texas, Leccinum rugosiceps has been observed in oak forests, particularly near sandy roads. The fungus was found in Lick Creek Park, College Station, on multiple occasions between May 2018 and July 2019, often in large numbers. The mushrooms were associated with post oaks and had wrinkled caps. Spore prints collected in May 2022 were dark brown. Additional sightings occurred in Sam Houston National Forest, on the Stubblefield section of the Lone Star hiking trail, in September 2024. The fungus was found growing under similar conditions, with wrinkled bolete mushrooms observed from various angles, including top and side views. These observations suggest that Leccinum rugosiceps is a common species in oak forests of East and Central Texas, particularly during the summer months.
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