| Code | Definition | Number of Accessions | |
| LG | large, 1 to 1.5 centimeter diameter | 47 |  |
| MD | medium, 1/2 to 1 centimeter diameter | 77 |  |
| SM | small, less than 1/2 centimeter diameter | 111 | |
| XL | Extra large, 1.5 to 2 centimeters diameter | 14 |  |
| XXL | Extra extra large, larger than 2 centimeters diameter | 1 |  |