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Quercus asymmetrica Hickel & A. Camus

Quercus asymmetrica

provided by wikipedia EN

Quercus asymmetrica[3] is an oak tree species in the beech family Fagaceae.[4][5] 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.[6] It is placed in subgenus Cerris, section Cyclobalanopsis.[7]

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.[8]

References

  1. ^ Carrero, C.; Strijk, J.S. (2020). "Quercus asymmetrica". IUCN Red List of Threatened Species. 2020: e.T78805106A173042077. doi:10.2305/IUCN.UK.2020-3.RLTS.T78805106A173042077.en. Retrieved 12 November 2022.
  2. ^ The Plant List (accessed 11/7/2017)
  3. ^ Hickel & A.Camus, 1923 In: Bull. Mus. Natl. Hist. Nat. 29: 601
  4. ^ 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.
  5. ^ WCSP: World Checklist of Selected Plant Families
  6. ^ 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. S2CID 55587214.
  7. ^ Denk, Thomas; Grimm, Guido W.; Manos, Paul S.; Deng, Min & Hipp, Andrew L. (2017). "Appendix 2.1: An updated infrageneric classification of the oaks" (xls). figshare. Retrieved 2023-02-24.
  8. ^ Flora of China: Cyclobalanopsis patelliformis (accessed 11/7/2017)

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Quercus asymmetrica: Brief Summary

provided by wikipedia EN

Quercus asymmetrica is an oak tree species in the beech family Fagaceae. 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. It is placed in subgenus Cerris, section Cyclobalanopsis.

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Quercus asymmetrica ( Polish )

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Quercus asymmetrica Hickel & A.Camus – gatunek roślin z rodziny bukowatych (Fagaceae Dumort.). Występuje naturalnie w Chinach – w prowincjach Guangdong, Hajnan i Jiangxi (na południu), a także w regionie autonomicznym Kuangsi[3].

Morfologia

Pokrój
Zimozielone drzewo dorastające do 15 m wysokości[3].
Liście
Blaszka liściowa jest skórzasta i ma eliptyczny, podługowato eliptyczny lub owalnie lancetowaty kształt. Mierzy 5–12 cm długości oraz 2,5–6 cm szerokości, jest piłkowana na brzegu, ma klinową nasadę i spiczasty wierzchołek. Ogonek liściowy jest nagi i ma 20–45 mm długości[3].
Owoce
Orzechy o podługowatym kształcie, dorastają do 20–25 mm długości i 25–28 mm średnicy. Osadzone są pojedynczo w kubkowatych miseczkach do 35% ich długości. Same miseczki mierzą 6–8 mm średnicy[3].

Biologia i ekologia

Rośnie w wilgotnych wiecznie zielonych lasach. Występuje na wysokości od 500 do 1000 m n.p.m. Kwitnie od maja do czerwca, natomiast owoce dojrzewają od października do listopada[3].

Przypisy

  1. Stevens P.F.: Angiosperm Phylogeny Website (ang.). 2001–. [dostęp 9 września 2017].
  2. a b Quercus asymmetrica Hickel & A.Camus (ang.). The Plant List. [dostęp 9 września 2017].
  3. a b c d e Cyclobalanopsis patelliformis (fr.). Plantes & botanique. [dostęp 9 września 2017].
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Quercus asymmetrica: Brief Summary ( Polish )

provided by wikipedia POL

Quercus asymmetrica Hickel & A.Camus – gatunek roślin z rodziny bukowatych (Fagaceae Dumort.). Występuje naturalnie w Chinach – w prowincjach Guangdong, Hajnan i Jiangxi (na południu), a także w regionie autonomicznym Kuangsi.

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Quercus asymmetrica ( Vietnamese )

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Quercus asymmetrica là một loài thực vật có hoa trong họ Cử. Loài này được Hickel & A.Camus miêu tả khoa học đầu tiên năm 1923.[1]

Chú thích

  1. ^ The Plant List (2010). Quercus asymmetrica. Truy cập ngày 4 tháng 6 năm 2013.

Tham khảo


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Quercus asymmetrica: Brief Summary ( Vietnamese )

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Quercus asymmetrica là một loài thực vật có hoa trong họ Cử. Loài này được Hickel & A.Camus miêu tả khoa học đầu tiên năm 1923.

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wikipedia VI