Physarella oblonga

Physarella oblonga (Berk. & Curt.) Morgan, Jour. Cine. Soc
Nat. Hist. 19:7. 1896.
Trichamphora oblonga Berk. & Curt.; Berk. GreviUea 2: 66. N 1873. Physarum rufibasis Berk. & Br. Jour. Linn. Soc. 14: 85. 3 D 1873. Chondrioderma inflatum Rost. Monog. 425. 1875. Tilmadoche oblonga Rost. Monog. Append. 13. 1876. TUmadoche hians Rost. Monog. Append. 14. 1876. Physarella mirabilis Peck, Bull. Torrey Club 9: 61. 1882. Tilmadoche minuta A. Berl. in Sacc. Syll. Fung. 7: 361. 1888. Physarum hians Massee, Monog. 296. 1892.
Sporangia gregarious, annulate and cylindric, cup-shaped or infundibuliform, up to 1 mm. in diameter and 3 mm. tall, usually stipitate, erect or nodding, "varying to sessile and plasmodiocarpous; peridium greenish with shadings of brown or red, necked with yellowish scales, at length rupturing from above, usually in lobate fashion, the lobes becoming reflexed, exposing the spiny processes, and leaving the cylindrical inner wall protruding as a pseudocolumella; stalk, when present, terete, hollow, usually long, red, translucent, arising from a scanty hypothallus; capillitium of slender, violaceous threads, sparingly branching and anastomosing and bearing a few fusiform, yellow lime-knots; spores globose, violet-brown, nearly smooth, 7-8 u in diameter; Plasmodium yellow.
Typb locality; Pennsylvania. Habitat: Dead wood and leaves.
Distribution: Throughout North America; cosmopolitan.