Synonyms: Athelia sericea, Caldesiella fusca, Caldesiella vaga, Coniophora arida, Coniophora fumosa, Corticium fumosum, Corticium ochroideum, Corticium sulphureum, Cristella sulphurea, Cristella vaga, Grandinia bresadolae, Grandinia vaga, Himantia sulphurea, Hypochnus fumosus, Hypochnus menieri, Hypochnus sericeus, Hypochnus vagus, Odontia fusca, Odontia tenuis, Odontia vaga, Phlebia vaga, Phlebiella vaga, Terana coerulea, Terana fumosa, Thelephora caerulea, Thelephora fumosa, Thelephora menieri, Tomentella fumosa, Tomentella lurida, Tomentella menieri, Trechispora vaga.
Common name: yellow cobweb.
Xenasmatella vaga is a species of fungus in the family Xenasmataceae. It is a crust fungus that grows on decaying wood, typically appearing as a thin, effused, and grayish-brown to brownish-gray crust with a smooth to slightly wrinkled surface. In East and Central Texas, Xenasmatella vaga has been found growing on various substrates, including logs, stumps, and fallen branches of deciduous trees, particularly oak and elm. The fungus is relatively common in the region's forests and woodlands, often fruiting in the spring and fall months when moisture levels are favorable.
Orange corticioid fungus Xenasmatella vaga(?) together with a small immature Coprinopsis on a fallen broadleaf tree in muddy area on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, November 19, 2023
Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Close-up of orange corticioid fungus Xenasmatella vaga(?) on a fallen broadleaf tree in muddy area on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Texas, November 19, 2023Little Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Orange corticioid fungus Xenasmatella vaga(?) on wet oak wood on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 2, 2023
Close-up of orange corticioid fungus Xenasmatella vaga(?) on wet oak wood on Caney Creek Trail (Little Lake Creek Loop Trail) in Sam Houston National Forest north from Montgomery. Texas, December 2, 2023
Spores of orange-olive corticioid fungus Xenasmatella vaga(?) from wet oak wood collected in Sam Houston National Forest near Montgomery. Texas, December 2, 2023
Spore size 6.4 - 7.56 × 5.2 - 6.1 µm, length to width ratio Q = 1 - 1.36.Observations of the fungus Xenasmatella vaga in East and Central Texas reveal its presence on fallen broadleaf trees and wet oak wood in muddy areas. On November 19, 2023, it was found on a fallen tree on South Wilderness Loop Trail at Little Lake Creek Wilderness in Sam Houston National Forest near Richards. Similar sightings were made on December 2, 2023, on Caney Creek Trail in the same forest north of Montgomery. Close-up observations showed the fungus's orange corticioid appearance. Spores collected from wet oak wood on December 2, 2023, were also examined. The fungus was often found alongside other species, such as a small immature Coprinopsis. These sightings suggest that Xenasmatella vaga thrives in humid environments with abundant decaying wood. Its orange-olive coloration and corticioid shape are distinctive characteristics of this species.
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