| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| BCLA | BUCK-CLAROMECO[1281]; | TR.AE | S | ARG |
| BCRIS | BUCK-CRISTAL[1281]; | TR.DR | S | ARG |
| BFOG | BUCK-FOGON[1281]; | TR.AE | S | ARG |
| BGUA | BUCK-GUARANI[1281]; | TR.AE | S | ARG |
| BNPU | BUCK-NAPUCA[1281]; | TR.AE | S | ARG |
| BPAL | BUCK-PALENQUE[1281]; | TR.AE | S | ARG |
| BPON | BUCK-PONCHO[1281]; | TR.AE | S | ARG |
| BUS | BUCKSHOT[1281]; | TR.AE | USA | |
| BERA1 | BUEYERA-1[1281]; | TR.DR | S | MEX |
| BERA2 | BUEYERA-2[1281]; | TR.DR | S | MEX |
| BERA3 | BUEYERA-3[1281]; | TR.DR | S | MEX |
| BERA | BUEYERA[1281]; | TR.DR | S | MEX |
| BGL-B | BULGURLU[1281]; | TR.AE | BGR | |
| BYP41 | BUNYIP-41[1281]; | TR.AE | USA | |
| BUR1 | BUR-1[1281]; | TR.DR | S | MEX |
| BUR2 | BUR-2[1281]; | TR.DR | S | MEX |
| BUR3 | BUR-3[1281]; | TR.DR | S | MEX |
| BUR4 | BUR-4[1281]; | TR.DR | S | MEX |
| BUR5 | BUR-5[1281]; | TR.DR | S | MEX |
| BUR6 | BUR-6[1281]; | TR.DR | S | MEX |