Synonyms: Boletus dryadeus, Boletus fomentarius, Boletus pseudoigniarius, Fomes dryadeus, Fomitiporia dryadea, Inonotus dryadeus, Ischnoderma dryadeum, Phellinus dryadeus, Placodes dryadeus, Polyporus dryadeus, Polyporus pseudoigniarius, Ungularia dryadea, Xanthochrous dryadeus.
Common names: oak bracket, Weeping Polypore.
Pseudoinonotus dryadeus is a rare, polypore fungus that grows on oak trees, particularly live oaks. In East and Central Texas, it typically fruits in late summer to early fall, producing large, woody, bracket-like conks with reddish-brown to dark brown caps and white to light brown pores. The fungus is parasitic, causing a heart rot in its host tree, and can be found on the trunks and branches of mature live oaks in wooded areas, often near streams or rivers.
Oak bracket fungus Pseudoinonotus dryadeus (Inonotus dryadeus) at the base of a living sweetgum tree in wet area on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, October 27, 2019
Lone Star Hiking Trail, Cleveland, TX 77328, USA
Water drops, or guttation of a young oak bracket fungus Pseudoinonotus dryadeus (Inonotus dryadeus) at the base of a big sweetgum tree on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, October 27, 2019Lone Star Hiking Trail, Cleveland, TX 77328, USA
Oak bracket fungus Pseudoinonotus dryadeus (Inonotus dryadeus) at the base of a big sweetgum tree on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, November 24, 2019Lone Star Hiking Trail, Cleveland, TX 77328, USA
Oak bracket fungus Pseudoinonotus dryadeus (Inonotus dryadeus) with water drops at the base of a big sweetgum tree on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, November 24, 2019Lone Star Hiking Trail, Cleveland, TX 77328, USA
Group of oak bracket mushrooms Pseudoinonotus dryadeus (Inonotus dryadeus) at the base of a big sweetgum tree on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, November 24, 2019Lone Star Hiking Trail, Cleveland, TX 77328, USA
Shelves of oak bracket fungus Pseudoinonotus dryadeus (Inonotus dryadeus) at the base of a big sweetgum tree on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, November 24, 2019Lone Star Hiking Trail, Cleveland, TX 77328, USA
Underside of oak bracket fungus Pseudoinonotus dryadeus (Inonotus dryadeus) at the base of a big sweetgum tree on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, November 24, 2019Lone Star Hiking Trail, Cleveland, TX 77328, USA
Cross section of oak bracket fungus Pseudoinonotus dryadeus (Inonotus dryadeus) at the base of a big sweetgum tree on Winters Bayou Trail in Sam Houston National Forest. Cleveland, Texas, November 24, 2019Lone Star Hiking Trail, Cleveland, TX 77328, USA
Mature oak bracket fungus Pseudoinonotus dryadeus (Inonotus dryadeus) at the base of a tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 27, 2019Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Cut and overturned caps of mature oak bracket fungus Pseudoinonotus dryadeus (Inonotus dryadeus) at the base of a tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 27, 2019Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Oak bracket mushroom (Pseudoinonotus dryadeus) at the base of a large living sweet gum tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, November 1, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Underside of oak bracket mushroom (Pseudoinonotus dryadeus) at the base of a large living sweet gum tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, November 1, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Cross section of oak bracket mushroom (Pseudoinonotus dryadeus) at the base of an oak tree on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest north from Montgomery. Texas, November 1, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Oak bracket fungus Pseudoinonotus dryadeus (Inonotus dryadeus) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 13, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Oak bracket fungus Pseudoinonotus dryadeus (Inonotus dryadeus) at the base of a sweetgum tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 13, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Oak bracket mushrooms Pseudoinonotus dryadeus (Inonotus dryadeus) at the base of an oak tree on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 13, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Underside of oak bracket fungus Pseudoinonotus dryadeus (Inonotus dryadeus) on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, November 13, 2020Little Lake Creek Loop Trail, Montgomery, TX 77356, USAObservations of the fungus Pseudoinonotus dryadeus in East and Central Texas reveal its presence at the base of trees, particularly sweetgum and oak, in wet areas of Sam Houston National Forest. The fungus was found on Winters Bayou Trail and Caney Creek Trail, with multiple observations between October 2019 and November 2020. Water drops or guttation were noted on young specimens, and the fungus was seen in various stages of growth, from young to mature. Cross sections and underside views revealed its characteristic structure. The fungus was often found in groups or shelves at the base of trees, suggesting a symbiotic relationship with the host tree. Sweetgum trees appeared to be a common host, with multiple observations of the fungus at their bases.
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