Synonyms: Agaricus farinaceus, Agaricus lateralis, Agaricus semipetiolatus, Agaricus stipticus, Crepidopus stipticus, Lentinus farinaceus, Lentinus stipticus, Merulius stipticus, Panellus farinaceus, Panus albidotomentosus, Panus farinaceus, Panus schultzii, Panus semipetiolatus, Panus stipticus, Paxillus lateralis, Pleurotus stipticus, Pocillaria stiptica, Rhipidium stipticum.
Common names: bitter oysterling, Luminescent Panellus.
Extract from Wikipedia article: Panellus stipticus, commonly known as the bitter oyster, the astringent panus, the luminescent panellus, or the stiptic fungus, is a species of fungus in the family Mycenaceae, and the type species of the genus Panellus. A common and widely distributed species, it is found in Asia, Australia, Europe, and North America, where it grows in groups or dense overlapping clusters on the logs, stumps, and trunks of deciduous trees, especially beech, oak, and birch. During the development of the fruit bodies, the mushrooms start out as tiny white knobs, which, over a period of one to three months, develop into fan- or kidney-shaped caps that measure up to 3 cm (1.2 in) broad. The caps are orange-yellow to brownish, and attached to the decaying wood by short stubby stalks that are connected off-center or on the side of the caps. The fungus was given its current scientific name in 1879, but has been known by many names since French mycologist Jean Bulliard first described it as Agaricus stypticus in 1783. Molecular phylogenetic analysis revealed P. stipticus to have a close genetic relationship with members of the genus Mycena.
Chinese: 鱗皮扇菇, Dutch: Scherpe schelpzwam, Estonian: Kirbe panell, Finnish: Kitkerävinokas, German: Herber Zwergknäueling, Hungarian: Kis áldücskőgomba, Japanese: ワサビタケ, Lithuanian: Ąžuolinis skiautenėlis, Persian: قارچ خونبند, Piedmontese: Panellus stypticus, Polish: Łycznik ochrowy, Russian: Панеллюс вяжущий, Swedish: Epålettsvamp.
Panellus stipticus is a species of fungus that grows on deciduous trees, particularly oak. It is a small to medium-sized mushroom with a fan-shaped or semicircular cap, typically 1-4 cm in diameter, and a wavy or lobed margin. The cap is often yellowish-brown to brown with a velvety texture, and the gills are crowded and pale yellowish. In East and Central Texas, Panellus stipticus can be found growing on oak trees, especially live oak and post oak, from spring to fall, with peak fruiting typically occurring in late spring and early summer. It is commonly encountered in woodland areas, parks, and along streams and rivers.
Bitter oyster mushrooms (Panellus stipticus) in Huntsville State Park. Texas, October 27, 2018
Huntsville State Park, 565 Park Road 40 west, Huntsville, TX 77340, USA
Bitter oysterling mushrooms (Panellus stipticus) at Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, November 2, 2019Lone Star Hiking Trail, Coldspring, TX 77331, USA
Bitter oyster mushrooms (Panellus stipticus) on a fallen oak branch in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020Lone Star Hiking Trail, Coldspring, TX 77331, USA
Bitter oyster mushrooms (Panellus stipticus) on rotting oak in Big Creek Scenic Area of Sam Houston National Forest. Shepherd, Texas, January 19, 2020Lone Star Hiking Trail, Coldspring, TX 77331, USA
Bitter oysterling mushrooms (Panellus stipticus) on Kirby Trail in Big Thicket National Preserve. Warren, Texas, October 17, 2020Kirby Nature Trail, Kountze, TX 77625, USA
Luminescent mushrooms Bitter oysterling (Panellus stipticus) on a log collected from Watson Rare Native Plant Preserve. Warren, Texas, November 27, 2021
Luminescent gill surface of bitter oysterling mushrooms (Panellus stipticus) collected from a log in Watson Rare Native Plant Preserve. Warren, Texas, November 27, 2021
Gills of bitter oysterling mushrooms (Panellus stipticus) on an oak log in Watson Rare Native Plant Preserve. Warren, Texas, November 2, 2022734, Red Oak Lane, Tyler County, Texas, 77664, United States
Bitter oysterling mushrooms (Panellus stipticus) on an oak log in Watson Rare Native Plant Preserve. Warren, Texas, November 2, 2022732, Red Oak Lane, Tyler County, Texas, 77664, United States
Glowing in darkness (luminescent) bitter oysterling mushrooms (Panellus stipticus) from an oak log, collected in Watson Rare Native Plant Preserve. Warren, Texas, November 2, 2022Observations of Panellus stipticus in East and Central Texas show the fungus growing on various substrates, including fallen oak branches, rotting oak, and logs. The mushrooms were found in multiple locations, including Huntsville State Park, Big Creek Scenic Area of Sam Houston National Forest, Big Thicket National Preserve, and Watson Rare Native Plant Preserve. They were observed at different times of the year, from October to November, and were noted to be luminescent, with a glowing gill surface. The mushrooms were typically found on oak logs or branches, suggesting a preference for this type of substrate. Multiple observations were made in the same locations over several years, indicating that Panellus stipticus is a common and persistent species in these areas. The fungus was often found in scenic areas and preserves, highlighting its presence in protected natural environments.
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