| Kind | Value | annotation | ||
| enumeration | 9_very strongly rugose | |||
| enumeration | 7_strongly rugose | |||
| enumeration | 8_strongly rugose to very strongly rugose | |||
| enumeration | 6_moderately rugose to strongly rugose | |||
| enumeration | 5_moderately rugose | |||
| enumeration | 4_slightly rugose to moderately rugose | |||
| enumeration | 3_slightly rugose | |||
| enumeration | 2_very slightly rugose to slightly rugose | |||
| enumeration | 1_smooth or very slightly rugose |