Quercus trojana

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Macedonian oak
Quercus trojana Jevremovac.JPG
Scientific classification Red Pencil Icon.png
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Fagaceae
Genus: Quercus
Subgenus: Quercus subg. Cerris
Section: Quercus sect. Cerris
Species:
Q. trojana
Binomial name
Quercus trojana
Quercus trojana range.svg
Distribution map
Synonyms [2]
List
  • Quercus aegilopsGriseb.
  • Quercus castaniifoliaPantan.
  • Quercus fragnusA.Longo
  • Quercus grisebachiiKotschy, Mattei & Bald.
  • Quercus macedonicaA.DC.
  • Quercus muzauraBalsamaki
  • Quercus ostryifoliaBorbás
  • Quercus euboicaPapaioann.

Quercus trojana, the Macedonian oak is an oak in the turkey oak section (Quercus sect. Cerris).

Contents

It is native to southeast Europe and southwest Asia, from southern Italy east across the southern Balkans (Croatia, Albania, Serbia, North Macedonia and Greece) to western Turkey, growing at low to moderate altitudes (up to 1,550 metres or 5,090 feet in the south of the range in southwestern Turkey), in dry areas. [3] [4] [5]

Description

Quercus trojana is a small to medium-sized tree reaching 10–20 metres (33–66 feet) tall, late deciduous to semi-evergreen, with gray-green leaves 3–7 centimetres (1+142+34 inches) long and 1.5–4 cm broad with a coarsely serrated margin with sharply pointed teeth. The acorns are 2–4 cm long when mature (about 18 months after pollination) and largely enclosed in the scaly acorn cup. [6]

Fossil record

Fossils of Quercus trojana have been described from the fossil flora of Kızılcahamam district in Turkey, which is of early Pliocene age. [7]

Related Research Articles

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This fossil flora in Turkey stems from at least six Pliocene deposits in Güvem and Beşkonak villages, 80 kilometres (50 mi) north of Ankara, 22 kilometres (14 mi) north of Kızılcahamam and 125 kilometres (78 mi) south of the Black Sea coast. They are 1,000 metres (3,300 ft) to 1,500 metres (4,900 ft) above sea level, extending 15 kilometres (9.3 mi) north-south and 7 kilometres (4.3 mi) east-west. Between six and seven million years ago, a fresh water lake existed there in a forested area with mostly broad leaved deciduous tree species, dominated by sequoia and oak.

References

  1. "Quercus trojana Webb". Tropicos . Missouri Botanical Garden.
  2. "Quercus trojana Webb". World Checklist of Selected Plant Families . Royal Botanic Gardens, Kew via The Plant List.
  3. Christensen, Knud Ib. 1997. Flora Hellenica 1: 45
  4. Altervista Flora Italiana, Quercus trojana Webb
  5. Jerzy Zieliński, Ana Petrova and Dominik Tomaszewski 2006. Quercus trojana subsp. yaltirikii (Fagaceae), a New Subspecies from Southern Turkey. Willdenowia 36:845-849
  6. Webb, Philip Barker 1839.
  7. Kasaplıgil, Baki (1977). "Ankara, Kızılcahamam yakınındaki Güvem köyü civarında bulunan son tersiyer kozalaklı-yeşil yapraklı ormanı" [A Late-Tertiary Conifer-Hardwood Forest From the Vicinity of Güvem Village, Near Kızılcahamam, Ankara](PDF). Bulletin of the Mineral Research and Exploration (in Turkish and English). Ankara: General Directorate of Mineral Research and Exploration. 88: 94-102.