Quercus species
publication ID |
https://doi.org/ 10.11646/phytotaxa.308.2.4 |
persistent identifier |
https://treatment.plazi.org/id/03A12D5D-FFC4-F95A-FF7A-FCBB37C3FB9F |
treatment provided by |
Felipe |
scientific name |
Quercus species |
status |
|
Key to Quercus species belonging to section Robur in Bulgaria
1. Leaves uniformly sinuate-dentate, with more than 8 pairs straight and parallel lateral veins, intercalary veins absent....................2
- Leaves pinnatifid to deeply pinnatifid, with up to 4–8 pairs lateral veins, with intercalary veins.....................................................3
2. Ramules red-brown, glabrous, relatively thin, terminal buds up to 4 mm, fruits on relatively thin peduncle (up to 1, 5 mm); only in Strandzha Mt., from 0 to 500 m a.s.l., along rivers........................................................................................... Quercus hartwissiana View in CoL
- Ramules light-brown, tomentose (at least on basis strongly tomentose), relatively thick, terminal buds bigger, 4–8 mm, fruits on relatively thick (up to 3 mm) peduncle; only in Rila Mt., at 1500–1750 m a.s.l., on dry, stony, very steep habitats .......................... .................................................................................................................................................................... Quercus protoroburoides View in CoL
3. Leaves glabrous............................................................................................................................................................ Quercus robur View in CoL
- Leaves greyish-puberulent beneath....................................................................................................................................................4
4. Leaves pubescent on the upper surface (with fasciculate-radiate) ......................................................................... Quercus mestensis View in CoL
- Leaves glabrous on the upper surface ............................................................................................................ Quercus pedunculiflora View in CoL
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