Synonyms: Boletus indecisus, Boletus subpunctipes, Tylopilus indecisus, Tylopilus subpunctipes.
Porphyrellus indecisus is a species of bolete fungus that grows on the ground in association with oak trees. In East and Central Texas, it typically fruits from June to October, producing medium-sized caps that are reddish-brown to dark brown, often with a velvety texture. The pores underneath are yellowish to greenish-yellow, and the stalk is slender and colored similarly to the cap. This fungus can be found in woodland areas, particularly under live oak and red oak, where it forms mycorrhizal relationships with the tree roots.
Bitter bolete mushroom Porphyrellus indecisus (Tylopilus indecisus)(?) in Lick Creek Park. College Station, Texas, July 2, 2018
Yaupon Loop, College Station, TX 77845, USA
Large bitter bolete mushroom Porphyrellus indecisus (Tylopilus indecisus)(?) and another bolete on Kiwanis Nature Trail. College Station, Texas, July 3, 20191110 Ashburn Ave, College Station, TX 77840, USA
Pink underside surface of a large bitter bolete mushroom Porphyrellus indecisus (Tylopilus indecisus)(?) on Kiwanis Nature Trail. College Station, Texas, July 3, 20191110 Ashburn Ave, College Station, TX 77840, USA
Dissected large bitter bolete mushroom Porphyrellus indecisus (Tylopilus indecisus)(?) on Kiwanis Nature Trail. College Station, Texas, July 3, 20191110 Ashburn Ave, College Station, TX 77840, USA
Pink pores of a large bitter bolete mushroom Porphyrellus indecisus (Tylopilus indecisus)(?) on Kiwanis Nature Trail. College Station, Texas, July 3, 20191110 Ashburn Ave, College Station, TX 77840, USA
Underside of bolete mushroom Porphyrellus indecisus (Tylopilus indecisus) on Kirby Nature Trail in Big Thicket National Preserve. Warren, Texas, June 12, 2022Kirby Nature Trail, Hardin County, Texas, United States
Bolete mushroom Porphyrellus indecisus (Tylopilus indecisus) on Kirby Nature Trail in Big Thicket National Preserve. Warren, Texas, June 12, 2022Kirby Nature Trail, Hardin County, Texas, United States
Cross section of bolete mushroom Porphyrellus indecisus (Tylopilus indecisus) on Kirby Nature Trail in Big Thicket National Preserve. Warren, Texas, June 12, 2022Kirby Nature Trail, Hardin County, Texas, United States
Spores from a bolete mushroom Porphyrellus indecisus (Tylopilus indecisus) collected on Kirby Nature Trail in Big Thicket National Preserve a day before. Texas, June 13, 2022Observations of the fungus Porphyrellus indecisus were made in East and Central Texas. In College Station, Texas, large bitter bolete mushrooms were found in Lick Creek Park on July 2, 2018, and on Kiwanis Nature Trail on July 3, 2019. The mushrooms had a pink underside surface and pores. Dissection of the mushroom revealed its internal structure. Similar observations were made in Big Thicket National Preserve, Warren, Texas, on June 12, 2022, where bolete mushrooms were found on Kirby Nature Trail with a notable underside and cross-section. Spores from a collected mushroom were also observed the following day, on June 13, 2022. The consistent characteristics of the mushrooms suggest that Porphyrellus indecisus is present in both East and Central Texas, with similar features observed across different locations and years.
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