| Abbrev | Name | Spec | Type | Locality |
|---|---|---|---|---|
| Rsr | ROCHESTER[1112] | |||
| Rdc | RODCO[1112] | |||
| Rtt | ROSETTA[1112] | |||
| Ryl | ROYAL[1112] | |||
| Rd | RUDDY[1112] | |||
| Rp | RUPERT[1112] | |||
| RNY6 | RURAL-NEW-YORKER-6[1112] | |||
| Rmr | RUSHMORE[1112] | |||
| Rsl | RUSSELL[1112] | |||
| Rsn | RUSSIAN[1112] | |||
| RRd | RUSSIAN-RED[1112] | |||
| Rst | RYSTING[1112] | |||
| Sln | SALINE[1112] | |||
| Sf | SANFORD[1112] | |||
| Ss | SATISFACTION[1112] | |||
| Sd | SAUNDERS[1112] | |||
| Stn | SAWTANA[1112] | |||
| Sst | SCHLANSTEDT[1112] | |||
| Sc | SCHONACHER[1112] | |||
| Sb | SEABREEZE[1112] |