Table 1.
Species separation based on characters of pubescence
| Character | |||||||||
| SH | FH | AMR | OMR | PET | TW | Type no. | Tree number | Taxon | No. of trees |
| 0 | 0 | 0 | 0 | 0 | 0 | 1 | - | Q. robur s.s. | 65 |
| 1 | 0 | 1 | 0 | 0 | 0 | 2 | - | Q. petraea s.s. | 66 |
| 0 | 1 | 1 | 1 | 1 | 1 | 3 | - | Q. pubescens – Q. frainetto s.s. | 125 |
| Total – s.s. | 256 | ||||||||
| 0 | 0 | 1 | 0 | 0 | 0 | 4 | 68, 200 | Q. robur – Q. petraea s.l. | 2 |
| 1 | 0 | 0 | 0 | 0 | 0 | 5 | 3, 118 | 2 | |
| 0 | 1 | 1 | 0 | 0 | 0 | 6 | 128 | Q. pubescens – Q. frainetto s.l. | 1 |
| 0 | 0 | 1 | 0 | 1 | 1 | 7 | 67 | 1 | |
| 0 | 0 | 1 | 1 | 1 | 1 | 8 | 27 | 1 | |
| 0 | 1 | 1 | 1 | 0 | 0 | 9 | 54 | 1 | |
| 0 | 1 | 1 | 0 | 1 | 0 | 10 | 249 | 1 | |
| 0 | 1 | 1 | 0 | 1 | 1 | 11 | 5, 24 | 2 | |
| 0 | 1 | 1 | 1 | 1 | 0 | 12 | 124, 321 | 2 | |
| Total – s.l. | 13 | ||||||||
| Total | 269 | ||||||||
SH – stellate hairs on the abaxial surface of the leaf; FH – fasciculate hairs on the abaxial surface of the leaf; AMR – fasciculate hairs along the mid-rib; OMR – fasciculate hairs on the mid-rib; PET – fasciculate hairs on the petiole; TW – fasciculate hairs on the twig; 1 – present, 0 – absent; s.s. – sensu stricto; s.l. – sensu lato.