| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| TCC | TEXCOCO[1281]; | TR.AE | S | MEX |
| TXR | TEXRED[1281]; | TR.AE | USA | |
| TF103 | TF-103[1281]; | TR.AE | ||
| TGLR | TGLR[1281]; | TR.AE | ||
| THEUS | THALASSEUS[3692]; | TR.DR | S | MEX |
| THC | THICA[1281]; | TR.DR | S | SYR |
| THKNEE | THICK-KNEE[3692]; | TR.DR | S | MEX |
| THBDMS | THORNBIRD-DMS[1281]; | TR.AE | S | MEX |
| TN | THORNE[1281]; | TR.AE | W | USA |
| THSH1 | THORSHANE-1[1281]; | TR.DR | S | MEX |
| THSH2 | THORSHANE-2[1281]; | TR.DR | S | MEX |
| THSH3 | THORSHANE-3[1281]; | TR.DR | S | MEX |
| THSH4 | THORSHANE-4[1281]; | TR.DR | S | MEX |
| THSH5 | THORSHANE-5[1281]; | TR.DR | S | MEX |
| THSH6 | THORSHANE-6[1281]; | TR.DR | S | MEX |
| THSH7 | THORSHANE-7[1281]; | TR.DR | S | MEX |
| THSH8 | THORSHANE-8[1281]; | TR.DR | S | MEX |
| THOR | THOR[1281]; | TR.AE | SWE | |
| TI87S | TI-87S[1281]; | TR.AE | ||
| TI-R | TANORI-71-RESELECTION[1281]; | TR.AE | S | MEX |