| Code | Definition | Number of Accessions |
| 2 (1 = flat, 9 = cylindral) | | 3 |
| 3 (1 = flat, 9 = cylindral) | | 14 |
| 4 (1 = flat, 9 = cylindral) | | 32 |
| 5 (1 = flat, 9 = cylindral) | | 45 |
| 6 (1 = flat, 9 = cylindral) | | 37 |
| 7 (1 = flat, 9 = cylindral) | | 36 |
| 8 (1 = flat, 9 = cylindral) | | 41 |
| 9 (1 = flat, 9 = cylindral) | | 1 |