Summary:
Ascobolus immersus is a common species on herbivore dung. It grows more or less immersed, with a yellow or greenish yellow disc, and is recognized by the very large spores with a thick glutinous envelope surrounding each spore.

Microscopic:
spores mostly 50-75 x 25-40 microns, oblong-elliptic, "smooth or with one or very few longitudinal splits in the epispore, surrounded by a thick, colourless gelatinous envelope", violaceous then brown; asci 1-40 per fruitbody, up to 8-spored, up to 700 x 130 microns; paraphyses slender, up to 3 microns wide, colorless, embedded in yellow mucus, (Dennis), spores (35)58-71(81) x (24)28-36(40) microns, oblong-elliptic, more rarely cylindric or nearly round, rounded at ends, "smooth or with one or a few lines which occasionally anastomose", sometimes with a coarse or fine network of narrow lines, a thick gelatinous envelope surrounding each spore, spores at first colorless, then purple or violet, finally sometimes purplish brown, spores biseriate or irregularly disposed; asci 8-spored (but often with only a part of the spores developed), 1-40 per fruitbody, 490-720 x 100-130 microns, with short stem, rounded at top, walls amyloid; paraphyses filiform, 2-3 microns wide, simple or branched, septate, not enlarged at tip, colorless, embedded in abundant greenish yellow mucus, (Brummelen)

Notes:
It is found at least in BC, CO, and AZ, (Larsen). Collections were examined from OR, ON, PQ, AZ, CO, CT, HI, IA, MA, ME, NJ, NY, VA, Argentina, Bermuda, Brazil, Puerto Rico, Austria, Belgium, Czechoslovakia, Denmark, France, Finland, Germany, Iceland, Italy, Luxembourg, Netherlands, Poland, Switzerland, United Kingdom, India, Pakistan, Australia, and New Guinea, (Brummelen).

Synonyms and Alternate Names:
Clavaria ornatipes Peck
Clavulina ornatipes (Peck) Corner