Summary:
Features include a minute (less than 0.1cm), light yellowish to orange fruiting body with roughened spore-bearing upper surface and setose outer surface, growth on dung, and microscopic characters. PezWeb preliminary checklist of North American Pezizales (which emphasizes western species) includes this species. Bezerra(1) give Lasiobolus papillatus (Pers. ex Fr.) Sacc. among the synonyms for Lasiobolus ciliatus (Schmidt ex Pers.) Boud., but the online Species Fungorum, accessed February 3, 2017, listed Lasiobolus ciliatus (J.C. Schmidt) Boud. as a synonym of Lasiobolus papillatus (Pers.) Sacc. and MycoBank, accessed the same date, listed Lasiobolus ciliatus (J.C. Schmidt) Boud. as an illegitimate name. The description here is derived from Bezerra(1) for Lasiobolus papillatus (Pers. ex Fr.) Sacc.
Lasiobolus papillatus is found in OR, ID, and also AB, NU, NS, ON, PQ, YT, AL, CA, FL, GA, IN, IA, KS, MA, MT, ND, NJ, NY, OH, WY, Argentina, Bermuda, Brazil, Mexico, Venezuela, Austria, Belgium, Czechoslovakia, Germany, Great Britain, Italy, Sweden, and Switzerland (Bezerra(1)). Larsen also mentions AK, CO, and UT for Lasiobolus ciliatus. Adolf and Oluna Ceska reported it from BC on deer dung.
Upper surface:
0.03-0.075(0.09)cm, disc flat or convex, from light yellowish to orange, rough, receptacle at first spherical then turbinate [top-shaped], and finally cup-shaped or shallow funnel-shaped
Underside:
of the same color as or paler than the disc, stiff setae arising from lower and median part of the receptacle
Stem:
absent
Microscopic:
spores (17)19-25 x (9)12-14(15) microns, elliptic, rounded at both ends, colorless, each with a prominent deBary bubble, smooth walled, uniseriate or biseriate; asci 8-spored, (112)180-270 x 15-30 microns, clavate-cylindric, rounded or truncate at top, narrowed in lower part to stem; paraphyses filiform [thread-like], colorless, septate, branched, 2-2.5 microns wide in lower part, slightly inflated to 2.5-3.5 microns at top; setae 200-600 microns long and (12)20-42 microns wide at widest part, non-septate, pointed, distinctly ventricose at base
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