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Bitter bracket

Fungi: Basidiomycota: Agaricomycetes: Polyporales: Fomitopsidaceae: Amaropostia stiptica (Pers.) B.K.Cui, L.L.Shen & Y.C.Dai

Amaropostia stiptica – bitter bracket

Synonyms: Agaricus albidus, Bjerkandera acricula, Bjerkandera colliculosa, Bjerkandera stiptica, Boletus albidus, Boletus patella, Boletus radicans, Boletus salicinus, Boletus stipticus, Boletus suaveolens, Cerrena unicolor, Daedalea albida, Daedalea salicina, Fomes albidus, Leptoporus albellus, Leptoporus albidus, Leptoporus fodinarum, Leptoporus stipticus, Microporus albidus, Oligoporus albidus, Oligoporus stipticus, Polyporus acriculus, Polyporus albidus, Polyporus candidissimus, Polyporus carbonarius, Polyporus dentatus, Polyporus fodinarum, Polyporus foetens, Polyporus fragilis, Polyporus perdurus, Polyporus stipticus, Polystictus albidus, Polystictus stipticus, Postia stiptica, Spongiporus stipticus, Tyromyces albidus, Tyromyces carbonarius, Tyromyces stipticus.

Common name: bitter bracket.

Photos of this mushroom from East and Central Texas

White polypore mushroom Postia stiptica (Oligoporus stipticus)(?) together with oyster rollrim (Tapinella panuoides) from a lower side of a fallen pine on Richards Loop Trail in Sam Houston National Forest. Texas, <A HREF="../date-en/2024-02-21.htm">February 21, 2024</A>
LinkWhite polypore mushroom Postia stiptica (Oligoporus stipticus)(?) together with oyster rollrim (Tapinella panuoides) from a lower side of a fallen pine on Richards Loop Trail in Sam Houston National Forest. Texas, February 21, 2024
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Underside of a white polypore mushroom Postia stiptica (Oligoporus stipticus)(?) from a lower side of a fallen pine on Richards Loop Trail in Sam Houston National Forest. Texas, <A HREF="../date-en/2024-02-21.htm">February 21, 2024</A>
LinkUnderside of a white polypore mushroom Postia stiptica (Oligoporus stipticus)(?) from a lower side of a fallen pine on Richards Loop Trail in Sam Houston National Forest. Texas, February 21, 2024
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Upper side of a white polypore mushroom Postia stiptica (Oligoporus stipticus)(?) from a lower side of a fallen pine on Richards Loop Trail in Sam Houston National Forest. Texas, <A HREF="../date-en/2024-02-21.htm">February 21, 2024</A>
LinkUpper side of a white polypore mushroom Postia stiptica (Oligoporus stipticus)(?) from a lower side of a fallen pine on Richards Loop Trail in Sam Houston National Forest. Texas, February 21, 2024
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Cross section of a white polypore mushroom Postia stiptica (Oligoporus stipticus)(?) from a lower side of a fallen pine on Richards Loop Trail in Sam Houston National Forest. Texas, <A HREF="../date-en/2024-02-21.htm">February 21, 2024</A>
LinkCross section of a white polypore mushroom Postia stiptica (Oligoporus stipticus)(?) from a lower side of a fallen pine on Richards Loop Trail in Sam Houston National Forest. Texas, February 21, 2024
Location on mapsLittle Lake Creek Loop Trail, Montgomery County, Texas, 77873, United States
Spores of a white polypore mushroom Postia stiptica (Oligoporus stipticus)(?) from a fallen pine, collected a day before on Richards Loop Trail in Sam Houston National Forest. Texas, February 22, 2024
LinkSpores of a white polypore mushroom Postia stiptica (Oligoporus stipticus)(?) from a fallen pine, collected a day before on Richards Loop Trail in Sam Houston National Forest. Texas, February 22, 2024
Measurement of sporesSpore size 4 - 4.6 × 2 - 2.3 µm, length to width ratio Q = 1.9 - 2.16.

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