Synonyms: Leucopezis excipulata, Octospora roxheimii.
Octospora excipulata is a species of fungus in the family Pyronemataceae, order Pezizales, class Ascomycota. It is characterized by its small to medium-sized apothecia, typically 0.5-2 cm in diameter, with a pale yellow to orange-brown disc and white to pale yellow margin. The fungus grows on the ground in association with mosses and other vegetation. In East and Central Texas, Octospora excipulata has been found in wooded areas, particularly under deciduous trees such as oak and maple, and in fields with rich soil and abundant vegetation. It typically fruits in the spring, from February to May, following periods of rainfall. The fungus is considered rare to uncommon in the region, but can be locally abundant in suitable habitats.
Small orange Ascomycete mushrooms Octospora excipulata(?) near Lost Pines Loop Trail in Bastrop State Park. Bastrop, Texas, February 28, 2021
Park Rd 1C, Bastrop, TX 78602, USA
Bryoparasitic Pezizales mushrooms Octospora excipulata(?) among common bladder-moss (Physcomitrium pyriforme) near Lost Pines Loop Trail in Bastrop State Park. Bastrop, Texas, February 28, 2021Park Rd 1C, Bastrop, TX 78602, USA
Close-up of bryoparasitic Pezizales mushrooms Octospora excipulata(?) among common bladder-moss (Physcomitrium pyriforme) near Lost Pines Loop Trail in Bastrop State Park. Bastrop, Texas, February 28, 2021Park Rd 1C, Bastrop, TX 78602, USA
Cup fungi Octospora excipulata(?) on ground burned a year ago near Lost Pines Loop Trail in Bastrop State Park. Bastrop, Texas, February 28, 2021Park Rd 1C, Bastrop, TX 78602, USA
Small bryoparasitic cup mushrooms Octospora excipulata(?) among common bladder-moss (Physcomitrium pyriforme) near Lost Pines Loop Trail in Bastrop State Park. Bastrop, Texas, February 28, 2021Park Rd 1C, Bastrop, TX 78602, USA
Orange cups of bryoparasitic Pezizales mushrooms Octospora excipulata(?) among common bladder-moss (Physcomitrium pyriforme) near Lost Pines Loop Trail in Bastrop State Park. Bastrop, Texas, February 28, 2021Park Rd 1C, Bastrop, TX 78602, USA
Bryoparasitic Pezizales mushrooms Octospora excipulata(?) in a mat of common bladder-moss (Physcomitrium pyriforme) near Lost Pines Loop Trail in Bastrop State Park. Bastrop, Texas, February 28, 2021Park Rd 1C, Bastrop, TX 78602, USA
Small orange cups of bryoparasitic Pezizales mushrooms Octospora excipulata(?) among common bladder-moss (Physcomitrium pyriforme) near Lost Pines Loop Trail in Bastrop State Park. Bastrop, Texas, February 28, 2021Park Rd 1C, Bastrop, TX 78602, USA
Bryoparasitic Pezizales mushrooms Octospora excipulata(?) on compacted sand covered by common bladder-moss (Physcomitrium pyriforme) near Lost Pines Loop Trail in Bastrop State Park. Bastrop, Texas, February 28, 2021Park Rd 1C, Bastrop, TX 78602, USA
Mat of common bladder-moss (Physcomitrium pyriforme) with bryoparasitic Pezizales mushrooms Octospora excipulata(?) near Lost Pines Loop Trail in Bastrop State Park. Bastrop, Texas, February 28, 2021Park Rd 1C, Bastrop, TX 78602, USA
Bryoparasitic Pezizales mushrooms Octospora excipulata(?) possibly with other small Ascomycete fungi near Lost Pines Loop Trail in Bastrop State Park. Bastrop, Texas, February 28, 2021Park Rd 1C, Bastrop, TX 78602, USA
Close-up of an orange cup of bryoparasitic Pezizales fungus Octospora excipulata(?) growing together with common bladder-moss (Physcomitrium pyriforme) near Lost Pines Loop Trail in Bastrop State Park. Bastrop, Texas, February 28, 2021Park Rd 1C, Bastrop, TX 78602, USA
Ascomycete fungus Octospora excipulata(?) in a small depression with wet soil covered by thin moss, in area completely burned 1.5 years ago in Bastrop State Park. Bastrop, Texas, December 25, 2021Lost Pines Trail, Bastrop County, Texas, 78602, United States
Tiny cup fungus Octospora excipulata(?) in a small depression with wet soil covered by thin moss, in area completely burned 1.5 years ago in Bastrop State Park. Bastrop, Texas, December 25, 2021Lost Pines Trail, Bastrop County, Texas, 78602, United States
Close-up of Ascomycete fungus Octospora excipulata(?) in a small depression with wet soil covered by thin moss, in area completely burned 1.5 years ago in Bastrop State Park. Bastrop, Texas, December 25, 2021Lost Pines Trail, Bastrop County, Texas, 78602, United States
Cluster of tiny cup mushrooms Octospora excipulata(?) in a small depression with wet soil covered by thin moss, in area completely burned 1.5 years ago in Bastrop State Park. Bastrop, Texas, December 25, 2021Lost Pines Trail, Bastrop County, Texas, 78602, United StatesObservations of the fungus Octospora excipulata in East and Central Texas reveal that it grows among common bladder-moss (Physcomitrium pyriforme) near Lost Pines Loop Trail in Bastrop State Park. The fungus appears as small orange cups, often in mats or clusters, on compacted sand or wet soil covered by thin moss. It was found in areas with burned ground, including spots burned a year ago and 1.5 years ago. The fungus seems to thrive in these conditions, growing together with the common bladder-moss. Multiple observations were made on February 28, 2021, and December 25, 2021, with varying levels of close-up detail. The fungus's bryoparasitic nature is evident, as it grows among the moss without harming it. Overall, Octospora excipulata appears to be a common sight in Bastrop State Park, particularly in areas with disturbed soil and moss growth.
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