Synonyms: Hypoxylon cubense, Isaria flabelliformis, Sphaeria flabelliformis, Xylaria flabelliformis, Xylaria papyrifera, Xylocoremium flabelliforme, Xylosphaera cubensis, Xylosphaera flabelliformis, Xylosphaera papyrifera.
Xylaria cubensis is a species of fungus in the family Xylariaceae, characterized by its slender, elongated stromata and white to cream-colored ascospores. In East and Central Texas, it typically grows on decomposing wood, particularly on deciduous trees such as oak and elm, often forming clusters or tufts of cylindrical to clavate fertile heads. The fungus is commonly found in shaded, humid areas with rich soil, including wooded slopes, ravines, and stream banks, typically fruiting from spring to fall.
Xylocoremium flabelliforme stage (anamorph) of Xylaria cubensis mushrooms in Lick Creek Park. College Station, Texas, March 19, 2018
Raccoon Run, College Station, TX 77845, USA
Rotten stump with Xylocoremium flabelliforme stage (anamorph) of Xylaria cubensis mushrooms in Lick Creek Park. College Station, Texas, March 19, 2018Raccoon Run, College Station, TX 77845, USA
Xylaria cubensis mushrooms on rotten wood on Caney Creek section of Lone Star Hiking Trail in Sam Houston National Forest near Huntsville, Texas, March 24, 2018Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Xylocoremium flabelliforme stage (anamorph) of Xylaria cubensis mushrooms on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, April 8, 2018LSHT Little Lake Creek Loop, Montgomery, TX 77356, USA
Xylocoremium flabelliforme stage (anamorph) of Xylaria cubensis fungus on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest, near Huntsville. Texas, April 8, 2018Little Lake Creek Loop Trail, Montgomery, TX 77356, USA
Xylaria cubensis mushrooms and their anamorph stage Xylocoremium flabelliforme in Hensel Park. College Station, Texas, April 14, 2018College Avenue, Bryan, Brazos County, Texas, 77801, United States
Gall-like corticioid fungus together with Xylaria flabelliformis (Xylaria cubensis) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020Lone Star Hiking Trail, Coldspring, TX 77331, USA
Gall-like corticioid fungus and Xylaria flabelliformis (Xylaria cubensis) in a small cavity of a rotting oak in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020Lone Star Hiking Trail, Coldspring, TX 77331, USA
Xylaria flabelliformis (Xylaria cubensis) mushroom and its anamorph stage Xylocoremium flabelliforme in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020Lone Star Hiking Trail, Coldspring, TX 77331, USA
Xylaria cubensis mushroom in its anamorph stage Xylocoremium flabelliforme on an oak log in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020Lone Star Hiking Trail, Coldspring, TX 77331, USA
Xylocoremium flabelliforme stage of a fungus Xylaria cubensis in Lick Creek Park. College Station, Texas, February 13, 2020Iron Bridge Trail, College Station, TX 77845, USA
Xylocoremium flabelliforme stage of a fungus Xylaria cubensis on a fallen tree limb in Lick Creek Park. College Station, Texas, February 13, 2020Iron Bridge Trail, College Station, TX 77845, USA
Immature Xylocoremium flabelliforme (a stage of a fungus Xylaria cubensis) in Lick Creek Park. College Station, Texas, February 13, 2020Iron Bridge Trail, College Station, TX 77845, USA
Xylaria flabelliformis (Xylaria cubensis) mushrooms on a fallen oak on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 9, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Xylaria flabelliformis (Xylaria cubensis) mushrooms with moss on a fallen oak on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 9, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Xylaria flabelliformis (Xylaria cubensis) together with Xylaria hypoxylon mushrooms on a fallen oak on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 9, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Xylaria flabelliformis (Xylaria cubensis) fungus in anamorph stage on a fallen oak on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 9, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Xylaria flabelliformis (Xylaria cubensis) fungus and its anamorph stage on a fallen oak on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 9, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Antler like fungus Xylaria flabelliformis (Xylaria cubensis) on a fallen oak on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 9, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Fungus Xylaria flabelliformis (Xylaria cubensis) with moss on a fallen oak on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 9, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Xylaria flabelliformis (Xylaria cubensis) fungus with its anamorph stage on a fallen oak on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 9, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Xylaria flabelliformis (Xylaria cubensis) fungus with its anamorph stage in moss on a fallen oak on Lone Star Hiking Trail near Pole Creek in Sam Houston National Forest. Richards, Texas, April 9, 2020Lone Star Hiking Trail, Montgomery, TX 77356, USA
Mushrooms Xylaria cubensis on a fallen oak(?) tree near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, June 8, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Cross section of a mushroom Xylaria cubensis near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, June 8, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Mushrooms Xylaria cubensis on a fallen mossy tree near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, June 8, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Close-up of mushrooms Xylaria cubensis on a fallen mossy tree near Pole Creek on North Wilderness Trail of Little Lake Creek Wilderness in Sam Houston National Forest north from Montgomery. Texas, June 8, 2021Lone Star Hiking Trail, Montgomery, TX 77356, USA
Conidia of anamorph of Xylaria cubensis mushrooms collected in Lick Creek Park. College Station, Texas, May 2, 2022
Spore size 4 - 4.3 × 1.7 - 1.85 µm, length to width ratio Q = 2.1 - 2.49.
Xylocoremium flabelliforme (a stage of a fungus Xylaria cubensis) collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 18, 2022Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Conidia of fungus Xylaria cubensis (anamorph) collected on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, May 18, 2022
Conidia (in lugol) from Xylocoremium flabelliforme, anamorph stage of fungus Xylaria cubensis, collected in Sam Houston National Forest near Richards. Texas, April 2, 2023The fungus Xylaria cubensis was observed in East and Central Texas over several years (2018-2023). Observations were made in various locations, including Lick Creek Park, Sam Houston National Forest, and Little Lake Creek Wilderness. The fungus was found on rotten wood, fallen trees, and oak logs, often with its anamorph stage Xylocoremium flabelliforme. Some observations noted the presence of moss or other fungi, such as Xylaria hypoxylon, nearby. The fungus was observed in different stages, including immature and mature forms, and conidia were collected for further study. The observations suggest that Xylaria cubensis is common in the region and can be found on a variety of substrates, particularly decaying wood. Overall, the data provide valuable information on the distribution and habits of this fungus in East and Central Texas.
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