Synonyms: Boletus ananas, Suillus ananas.
Common name: Pineapple Bolete.
Extract from Wikipedia article: Boletellus ananas, commonly known as the pineapple bolete, is a mushroom in the family Boletaceae, and the type species of the genus Boletellus. It is distributed in southeastern North America, northeastern South America, Asia, and New Zealand, where it grows scattered or in groups on the ground, often at the base of oak and pine trees. The fruit body is characterized by the reddish-pink (or pinkish-tan to yellowish if an older specimen) scales on the cap that are often found hanging from the edge. The pore surface on the underside of the cap is made of irregular or angular pores up to 2 mm wide that bruise a blue color. It is yellow when young but ages to a deep olive-brown color. Microscopically, B. ananas is distinguished by large spores with cross striae on the ridges and spirally encrusted hyphae in the marginal appendiculae and flesh of the stem. Previously known as Boletus ananas and Boletus coccinea (among other synonyms), the species was given its current name by William Alphonso Murrill in 1909. Two varieties of Boletellus ananas have been described. Although the mushroom may be considered edible, it is not recommended for consumption.
Chinese: 厚鱗條孢牛肝菌.
Boletellus ananas is a species of bolete fungus that grows in association with roots of trees, particularly oak and pine. In East and Central Texas, it typically fruits from May to October, producing small to medium-sized caps that are yellow to orange-yellow in color, often with a powdery or fuzzy appearance. The flesh is yellow and stains blue when injured. It can be found in wooded areas, especially under oak and pine trees, in regions such as the Piney Woods of East Texas and the Post Oak Savannah of Central Texas.
Cap of pineapple bolete mushroom (Boletellus ananas) growing at the base of a pine tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018
Lone Star Hiking Trail, Montgomery, TX 77356, USA
Reddish pink scales on a cap of pineapple bolete mushroom (Boletellus ananas) growing at the base of a pine tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Pineapple bolete mushroom (Boletellus ananas) growing at the base of a pine tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Pores of pineapple bolete mushroom (Boletellus ananas) found at the base of a pine tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Cross section of pineapple bolete mushroom (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Pineapple bolete mushroom (Boletellus ananas) growing growing on a pine log on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Veil remnants on underside of a cap of pineapple bolete mushroom (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Mycelium at the base of pineapple bolete mushroom (Boletellus ananas) growing on a pine log on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Irregularly shaped pores of pineapple bolete mushroom (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Side view of pineapple bolete mushroom (Boletellus ananas) growing at the base of a pine tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Pores and remains of veil of pineapple bolete mushroom (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Rough scales on a cap of a mature pineapple bolete mushroom (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Mature pineapple bolete mushrooms (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Pineapple bolete mushroom (Boletellus ananas) at the base of a pine on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Cap of pineapple bolete mushroom (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Pineapple bolete mushroom (Boletellus ananas) among pine needles on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Pair of pineapple bolete mushrooms (Boletellus ananas) at the base of a pine on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 7, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Young pineapple bolete mushrooms (Boletellus ananas) at the base of a pine on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Immature pineapple bolete mushrooms (Boletellus ananas) on a pine log on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Young pineapple bolete mushroom (Boletellus ananas) on a pine log on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Pair of young pineapple bolete mushrooms (Boletellus ananas) on a pine log on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Young pineapple bolete mushroom (Boletellus ananas) on a rotten and burnt pine log on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Dissected young pineapple bolete mushroom (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Cross section of a young pineapple bolete mushroom (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 13, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Pineapple bolete mushrooms (Boletellus ananas) at the base of a pine on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, July 15, 2018Lone Star Hiking Trail, Montgomery, TX 77356, USA
Cap of pineapple bolete mushroom (Boletellus ananas) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 11, 2019Lone Star Hiking Trail, Montgomery, TX 77356, USA
Underside of pineapple bolete mushroom (Boletellus ananas) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 11, 2019Lone Star Hiking Trail, Montgomery, TX 77356, USA
Pineapple bolete mushroom (Boletellus ananas) growing at the base of a pine tree on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 11, 2019Lone Star Hiking Trail, Montgomery, TX 77356, USA
Pineapple bolete mushrooms (Boletellus ananas) at the base of a standing live pine tree on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 5, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Cross section of pineapple bolete mushrooms (Boletellus ananas) at the base of a pine tree on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 5, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Cap of pineapple bolete mushroom (Boletellus ananas) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 5, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Rough texture of cap of pineapple bolete mushroom (Boletellus ananas) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 5, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Yellow pores of pineapple bolete mushroom (Boletellus ananas) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 5, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Cross section of pineapple bolete mushroom (Boletellus ananas) on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, August 5, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Cap of pineapple bolete mushroom (Boletellus ananas) on a pine stump on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Underside of pineapple bolete mushroom (Boletellus ananas) on a pine stump on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Lower view of pineapple bolete mushroom (Boletellus ananas) on a pine stump on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Pore surface of pineapple bolete mushroom (Boletellus ananas) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Edge of pore surface of pineapple bolete mushroom (Boletellus ananas) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Central area of pore surface of pineapple bolete mushroom (Boletellus ananas) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Scaly cap of pineapple bolete mushroom (Boletellus ananas) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Underside of young pineapple bolete mushroom (Boletellus ananas) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Cross section of pineapple bolete mushroom (Boletellus ananas) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Cross section and yellow pores of pineapple bolete mushroom (Boletellus ananas) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Yellow underside of pineapple bolete mushroom (Boletellus ananas) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Cross section and pink cap of pineapple bolete mushroom (Boletellus ananas) on Richards Loop Trail in Sam Houston National Forest. Texas, September 25, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Cross section of a young pineapple bolete mushroom (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, June 5, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Cap of pineapple bolete mushroom (Boletellus ananas) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, July 11, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Young pineapple bolete mushroom (Boletellus ananas) at the base of a pine tree near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, July 11, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Cap of pineapple bolete mushroom (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, July 16, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Scales on a cap of pineapple bolete mushroom (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, July 16, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Pineapple bolete mushrooms (Boletellus ananas) near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, August 31, 2022North Wilderness Trail, Montgomery County, Texas, United States
Spores of pineapple bolete mushrooms (Boletellus ananas) collected near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, August 31, 2022
Coarsely-ribbed bolete mushrooms (Austroboletus subflavidus) together with Boletellus ananas on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, September 14, 2022Lone Star Hiking Trail, Montgomery County, Texas, United States
Top view of pineapple bolete mushroom (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, September 14, 2022Lone Star Hiking Trail, Montgomery County, Texas, United States
Cap of pineapple bolete mushroom (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, September 14, 2022Lone Star Hiking Trail, Montgomery County, Texas, United States
Pineapple bolete mushrooms (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, September 14, 2022Lone Star Hiking Trail, Montgomery County, Texas, United States
Cross section of pineapple bolete mushrooms (Boletellus ananas) on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, September 14, 2022Lone Star Hiking Trail, Montgomery County, Texas, United States
Longitudinally striate spores of pineapple bolete mushrooms (Boletellus ananas) collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, September 14, 2022
Bolete mushrooms Strobilomyces strobilaceus and Boletellus ananas at the base of a pine tree in Pole Creek area of Sam Houston National Forest near Montgomery. Texas, September 16, 2022Lone Star Hiking Trail, Montgomery County, Texas, United States
Side view of pineapple bolete mushrooms (Boletellus ananas) in Pole Creek area of Sam Houston National Forest near Montgomery. Texas, September 16, 2022Lone Star Hiking Trail, Montgomery County, Texas, United States
Cross section of pineapple bolete mushrooms (Boletellus ananas) in Pole Creek area of Sam Houston National Forest near Montgomery. Texas, September 16, 2022Lone Star Hiking Trail, Montgomery County, Texas, United States
Pineapple bolete mushroom (Boletellus ananas) at the base of a pine in Pole Creek area of Sam Houston National Forest near Montgomery. Texas, September 16, 2022Lone Star Hiking Trail, Montgomery County, Texas, United States
Pineapple bolete mushrooms (Boletellus ananas) in Pole Creek area of Sam Houston National Forest near Montgomery. Texas, September 16, 2022Lone Star Hiking Trail, Montgomery County, Texas, United States
Close-up of a cap of pineapple bolete mushroom (Boletellus ananas) in Pole Creek area of Sam Houston National Forest near Montgomery. Texas, September 16, 2022Lone Star Hiking Trail, Montgomery County, Texas, United States
Spores of bolete mushrooms Boletellus ananas (in KOH, spore print is black) collected in Pole Creek area of Sam Houston National Forest near Montgomery. Texas, September 16, 2022
Section of pineapple bolete mushroom (Boletellus ananas) when exposed to regular daylight as well as when illuminated by a 365 nm ultraviolet (UV-A) blacklight collected on Stubblefield section of Lone Star hiking trail in Sam Houston National Forest. Texas, September 15, 2024
Pineapple bolete mushroom (Boletellus ananas) both in natural light and under 365 nm ultraviolet (UV-A) blacklight collected on Stubblefield section of Lone Star hiking trail in Sam Houston National Forest. Texas, September 15, 2024The observations document the presence of pineapple bolete mushrooms (Boletellus ananas) in Sam Houston National Forest, specifically in areas near Pole Creek, Caney Creek, and Little Lake Creek Wilderness. The mushrooms were found at the base of pine trees from July to September over several years (2021-2024). Various characteristics were observed, including scales on the cap, coarsely ribbed stems, and longitudinally striate spores. Some observations noted the presence of other bolete species, such as Austroboletus subflavidus and Strobilomyces strobilaceus, in the same areas. The mushrooms were also found to fluoresce under 365 nm ultraviolet (UV-A) blacklight. Overall, the observations provide a record of the distribution and characteristics of Boletellus ananas in Sam Houston National Forest.
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