Dictydiaethalium plumbeum

Dictydiaethalium plumbeum (Schum.) Rost.;
Lister, Mycet. 157. 1894.
Fuligo plumbea Schum. Enum. PL Saell. 2: 193. 1803.
Reticularia plumbea Fries, Syst.Myc. 3:88 -1829.
Ostracoderma spadiceum Schw. Trans. Am. Phil. Soc. XI. 4: lol. 1SJA
Licea rugulosa Wallr. FL Crypt. Germ. 2? 345. 1833. Licea applanata Berk. Lond. Jour. Bot. 4: 67. 1845.
Lycogala lenticular e Dur. & Mont.; Durieu, Expl. Sci. Alger. Bot. 1: 401. 1848.
Reticularia enloxantha Berk. Jour. Bot. & Kew Misc. 3: 201. 1851.
Reticularia lurida Berk. & Br. Jour. Linn. Soc. 14: 82. 1873.
Licea cinnabarina Berk. & Br. Jour. Linn. Soc. 14: 86. 1873.
Licea tenuissima Berk. & Br. Jour. Linn. Soc. 14: 86. 1873.
Dictydiaethalium applanatum Rost.; Fuckel, Jahrb. Nass. Ver. Nat. 27-28: 69. 1873.
Clathroptychium rugulosum Rost. Monog. 225. 1875.
Dictydiaethalium dissiliens Hazsl. Oesterr. Bot. Zeits. 27: 85. 1877.
Clathroptychium cinnabarinum Sacc. Michelia 1: 545. 1879.
Clathroptychium Berkeleyi Massee, Monog. 53. 1892.
Clathroptychium dissiliens Massee, Monog. 53. 1892.
Fructification an aethalium at maturity, the lids and upper portions of the component sporangia forming a firm, tessellated cortex, olivaceous, ochraceous-brown, or reddish-brown to nearly black or occasionally bright red, varying in extent from a few mm. to 10 cm. or more; pseudocapillitium of threads formed from the angles of the constituent sporangia, depending from the corners of the lids but not reaching the base, the balance of the sporangial walls completely evanescent below; spores ochraceous or clay-colored, rarely bright yellow in mass, almost colorless or pale yellow by transmitted light, minutely roughened, 9-10 y. in diameter; Plasmodium pink or rose-colored.
Type locality: Denmark. Habitat: Dead wood.
Distribution: Throughout North America; cosmopolitan.