Quercus asymmetrica

Quercus asymmetrica
Scientific classification
Kingdom:Plantae
Clade:Angiosperms
Clade:Eudicots
Clade:Rosids
Order:Fagales
Family:Fagaceae
Genus:Quercus
Subgenus:Quercus subg. Cyclobalanopsis
Species: Q. asymmetrica
Binomial name
Quercus asymmetrica
Hickel & A.Camus
Synonyms[1]

Cyclobalanopsis patelliformis (Chun) Y.C.Hsu & H.Wei Jen
Quercus patelliformis Chun

Quercus asymmetrica[2] is the accepted name of an endemic oak tree species in the Asian sub-genus of 'ring-cupped oaks' and the family Fagaceae.[3][4] It is found in China (specifically, Guangxi Province and Hainan Province, where it is called 托盘青冈 tuo pan qing gang) and northern Vietnam.[5]

Description

Quercus asymmetrica is a tree growing up to 15 m tall, with branchlets that are conspicuously angular when young; by second year, they become glabrous with occasional lenticels. The leaves are leathery, elliptic to ovate-lanceolate, 50-120 × 25–60 mm and have 9-11 secondary veins on each side of mid-vein. The acorns are oblate, 25–28 mm in diameter, greyish-brown, with a scar 15–20 mm in diameter, impressed or flat. The cupules are 20–30 mm in diameter. A persistent stylopodium is approximately 40 mm in diameter. In China, flowering is in May–June and acorns may be found in October–November of the following year.[6]

References

  1. ↑ The Plant List (accessed 11/7/2017)
  2. ↑ Hickel & A.Camus, 1923 In: Bull. Mus. Natl. Hist. Nat. 29: 601
  3. ↑ Roskov Y.; Kunze T.; Orrell T.; Abucay L.; Paglinawan L.; Culham A.; Bailly N.; Kirk P.; Bourgoin T.; Baillargeon G.; Decock W.; De Wever A. (2014). Didžiulis V., ed. "Species 2000 & ITIS Catalogue of Life: 2014 Annual Checklist". Species 2000: Reading, UK. Retrieved 26 May 2014.
  4. ↑ WCSP: World Checklist of Selected Plant Families
  5. ↑ Min Deng; Zhe-Kun Zhou & Allen Coombes (2010). "Lectotypification and new synonymy in Quercus subg. Cyclobalanopsis (Fagaceae)" (PDF). Novon. 20 (4): 400–405. doi:10.3417/2004208.
  6. ↑ Flora of China: Cyclobalanopsis patelliformis (accessed 11/7/2017)
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