Synonyms: Bulgaria rufa, Burckhardia rufa, Gloeocalyx rufa, Sarcosoma rufum.
Common name: hairy rubber cup.
Extract from Wikipedia article: Galiella rufa, commonly known as the rubber cup, the rufous rubber cup, or the hairy rubber cup, is a species of fungus in the family Sarcosomataceae. The fungus produces cup-shaped fruit bodies that typically grow in clusters on branches and exposed portions of buried wood throughout eastern and Midwest North America and in Malaysia. The fruit bodies have the texture of tough, gelatinous rubber, and have a rough, blackish-brown, felt-like outer surface and a smooth reddish-brown inner surface. Although generally considered inedible by North American mushroom field guides, it is commonly consumed in Malaysia. The fungus produces several interesting natural products.
French: Galielle rousse.
Galiella rufa is a species of fungus in the family Helotiaceae, characterized by its reddish-brown to orange apothecia and white to pale yellow hymenium. In East and Central Texas, it typically grows on decaying logs, stumps, or other woody debris, often in shaded, moist areas. The fungus produces small to medium-sized fruiting bodies, usually 1-5 cm in diameter, with a short stalk and a wavy or lobed margin. It is commonly found in wooded regions, including deciduous and mixed forests, from spring to fall, with peak fruiting occurring in late spring and early summer.
Rufous rubber cup mushroom Galiella rufa (Bulgaria rufa) on a fallen oak branch on a property at 5369 Farm to Market Road 770 near Kountze. Texas, June 8, 2019
5303 Farm to Market Rd 770, Kountze, TX 77625, USA
Rufous rubber cup mushrooms Galiella rufa (Bulgaria rufa) on a fallen oak branch on a property at 5369 Farm to Market Road 770 near Kountze. Texas, June 8, 20195303 Farm to Market Rd 770, Kountze, TX 77625, USA
Close up of rufous rubber cup mushroom Galiella rufa (Bulgaria rufa) on a fallen oak branch on a property at 5369 Farm to Market Road 770 near Kountze. Texas, June 8, 20195303 Farm to Market Rd 770, Kountze, TX 77625, USA
Rufous rubber cup mushrooms Galiella rufa (Bulgaria rufa) on a rotting oak branch on a property at 5369 Farm to Market Road 770 near Kountze. Texas, June 8, 20195303 Farm to Market Rd 770, Kountze, TX 77625, USA
Close-up of rufous rubber cup mushrooms Galiella rufa (Bulgaria rufa) on a piece of wood in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 25, 2020Lone Star Hiking Trail, Coldspring, TX 77331, USA
Rufous rubber cup mushrooms Galiella rufa (Bulgaria rufa) on a piece of wood in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 25, 2020Lone Star Hiking Trail, Coldspring, TX 77331, USA
Hairy rubber cup fungus (Galiella rufa) on submerged sticks in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, May 30, 2020Lone Star Hiking Trail, Coldspring, TX 77331, USA
Hairy rubber cup mushrooms (Galiella rufa) on an oak twig in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 30, 2023Big Creek Trail, San Jacinto County, Texas, United States
Hairy rubber cup mushrooms (Galiella rufa) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 30, 2023Big Creek Trail, San Jacinto County, Texas, United States
Ascomycete mushrooms Galiella rufa in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 30, 2023Big Creek Trail, San Jacinto County, Texas, United States
Cross section of Ascomycete mushrooms Galiella rufa in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 30, 2023Big Creek Trail, San Jacinto County, Texas, United States
Close-up of hairy rubber cup mushrooms (Galiella rufa) in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, April 30, 2023Big Creek Trail, San Jacinto County, Texas, United States
Asci at low magnification of Ascomycete fungus Galiella rufa collected in Big Creek Scenic Area of Sam Houston National Forest. Texas, April 30, 2023
Asci and paraphyses of Ascomycete fungus Galiella rufa collected in Big Creek Scenic Area of Sam Houston National Forest. Texas, April 30, 2023
Spores of Ascomycete fungus Galiella rufa at low magnification, collected in Big Creek Scenic Area of Sam Houston National Forest. Texas, April 30, 2023
Spores of Ascomycete fungus Galiella rufa collected in Big Creek Scenic Area of Sam Houston National Forest. Texas, April 30, 2023
Spore size 20 - 22.9 × 9.5 - 10.1 µm, length to width ratio Q = 2 - 2.4.
Spores of hairy rubber cup mushrooms (Galiella rufa) collected in Big Creek Scenic Area of Sam Houston National Forest a day before. Texas, May 1, 2023
Spores (in Melzer, low magnification) of hairy rubber cup mushrooms (Galiella rufa) collected in Big Creek Scenic Area of Sam Houston National Forest a day before. Texas, May 1, 2023
Spores (in Melzer) of hairy rubber cup mushrooms (Galiella rufa) collected in Big Creek Scenic Area of Sam Houston National Forest a day before. Texas, May 1, 2023
Hairy rubber cup fungus (Galiella rufa) on fallen oak twigs in Hensel Park. College Station, Texas, May 8, 2023East Brookside Drive, Bryan, Brazos County, Texas, 77801, United States
Young hairy rubber cup fungus (Galiella rufa) together with some tiny Gymnopus in Hensel Park. College Station, Texas, May 8, 2023East Brookside Drive, Bryan, Brazos County, Texas, 77801, United States
Acomycete fungus Galiella rufa on fallen oak twigs in Hensel Park. College Station, Texas, May 8, 2023East Brookside Drive, Bryan, Brazos County, Texas, 77801, United States
Brown cup fungus Galiella rufa on fallen oak twigs in Hensel Park. College Station, Texas, May 8, 2023East Brookside Drive, Bryan, Brazos County, Texas, 77801, United States
Hairy rubber cup fungus (Galiella rufa) in Hensel Park. College Station, Texas, May 8, 2023South College Avenue, University Apartments - The Gardens, College Station, Brazos County, Texas, 77843, United States
Young and mature cups of Ascomycete fungus Galiella rufa in Hensel Park. College Station, Texas, May 8, 2023East Brookside Drive, Bryan, Brazos County, Texas, 77801, United States
Upper view of hairy rubber cup fungus (Galiella rufa) in Hensel Park. College Station, Texas, May 8, 2023East Brookside Drive, Bryan, Brazos County, Texas, 77801, United States
Upper view of a cluster of hairy rubber cup fungus (Galiella rufa) in Hensel Park. College Station, Texas, May 8, 2023South College Avenue, University Apartments - The Gardens, College Station, Brazos County, Texas, 77843, United StatesThe fungus Galiella rufa was observed in East and Central Texas on multiple occasions between June 2019 and May 2023. The majority of sightings were in the Big Creek Scenic Area of Sam Houston National Forest, where it grew on submerged sticks, oak twigs, and pieces of wood. Additional observations were made in Hensel Park, College Station, and a private property near Kountze, where it was found on fallen oak branches and twigs. The fungus was often described as "hairy rubber cup" or "rufous rubber cup" due to its distinctive appearance. Close-up photographs and microscopic examinations of the fungus's spores and asci were also taken, providing detailed information about its morphology. Overall, the observations suggest that Galiella rufa is a relatively common species in the region, particularly in areas with abundant oak vegetation.
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