| Taxon | Collector | Location | Type Status | Barcode | |
|---|---|---|---|---|---|
| Acarospora sphaerosperma R.C.Harris & K.Knudsen | R. C. Harris 47701 21 May 2003 | United States of America. Missouri. Christian Co. Mark Twain National Forest, N of Turkey Creek Road, 0.75 mi W of MO UU. | 752985 |  | |
| Acarospora sphaerosperma R.C.Harris & K.Knudsen | R. C. Harris 50334 04 Nov 2004 | United States of America. Missouri. Texas Co. Gist Ranch Conservation Area, N of Ranch Road, 2.5 mi E of SR 137 on Nagle Drive/Ranch Road, just E of Peters Creek. | 752986 |  | |
| Acarospora sphaerosperma R.C.Harris & K.Knudsen | R. C. Harris 44184 29 Oct 2000 | United States of America. Missouri. Greene Co. Wilson's Creek National Battlefield, Bloody Hill. | 752987 |  | |
| Acarospora sphaerosperma R.C.Harris & K.Knudsen | R. C. Harris 45400-D 24 Oct 2001 | United States of America. Arkansas. Izard Co. NE corner of Devil's Knob-Devil's Backbone Natural Area, along Co. Rd. 12, 1.2 mi NNW of AR 9. | holotype | 00752988 |  |
| Acarospora sphaerosperma R.C.Harris & K.Knudsen | R. C. Harris 52809 22 May 2006 | United States of America. Ohio. Adams Co. Oliver Township, Chaparral Prairie State Nature Preserve, N of Chaparral Road, ca. 3 mi NW of SR 247. | 1221105 |  | |
| Acarospora sphaerosperma R.C.Harris & K.Knudsen | J. Kocourková 8979 23 Mar 2016 | Czech Republic. Central Bohemia, Rakovnik, E of Mily near Msec, "Milska stram" slope. | 2701194 |  | |
| Acarospora sphaerosperma R.C.Harris & K.Knudsen | W. R. Buck 40577 27 Oct 2001 | United States of America. Missouri. Montgomery Co. NW corner of Danville Conservation Area, Danville Glades Natural Area, NNW of parking area along Co. Rd. 276 (Turkey Ridge Road). | 721863 |  | |
| Acarospora sphaerosperma R.C.Harris & K.Knudsen | W. R. Buck 42931 05 Nov 2002 | United States of America. Missouri. Taney Co. Ruth and Paul Henning Conservation Area, Dewey Bald, along MO 76, W of Branson. | 721865 |  | |
| Acarospora sphaerosperma R.C.Harris & K.Knudsen | R. C. Harris 45658 26 Oct 2001 | United States of America. Missouri. Saint Louis Co. Rockwoods Reservation, W of MO 109, N of Eureka, along Trail Among the Trees. | 752989 |  |