| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| ACTS2 | ACTITIS-2[1281]; | TR.DR | S | MEX |
| ACTS3 | ACTITIS-3[1281]; | TR.DR | S | MEX |
| ACTS4 | ACTITIS-4[1281]; | TR.DR | S | MEX |
| ACTS6 | ACTITIS-6[1281]; | TR.DR | S | MEX |
| ACTS | ACTITIS[1281]; | TR.DR | S | MEX |
| AD1156 | AD-1156[1281]; | TR.AE | USA | |
| AD2209 | AD-2209[1281]; | TR.AE | ||
| AD359 | AD-359[1281]; | RYE | SUN | |
| ADAMAR | ADA-MARTISI[1281]; | TR.DR | S | MEX |
| ADAMEL | ADAMELLO[1281]; | TR.DR | ITA | |
| ADDR | ADDER[1281]; | TR.AE | USA | |
| ADN | ADENA[1281]; | TR.AE | USA | |
| ADI | ADRIA[1281]; | TR.AE | ITA | |
| AVTG | ADVANTAGE[1281]; | TR.AE | USA | |
| AGCD1 | AGACHADIZA-1[1281]; | TR.DR | S | MEX |
| AGCHON | AGACHON[1281]; | TR.DR | S | MEX |
| AGIA | AGAMIA[1281]; | TR.DR | S | MEX |
| AGZ | AGASSIZ[1281]; | TR.AE | USA | |
| AGRT | AGRONTANA[1281]; | TR.AE | CAN | |
| AGEL8A | AGROPYRON-ELONGATUM-8-A-206[1281]; | AGEL | S | MEX |