Quercus franchetii

Quercus franchetii, commonly known as the zhui lian li evergreen oak, is a species of oak in the Ilex section of the genus,[3] native to a wide area of eastern Asia. It is an oak native to China (Sichuan and Yunnan), northern Thailand and Vietnam, growing at altitudes between 800 and 2,600 metres (2,600 and 8,500 feet).[4]

Zhui lian li evergreen oak
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Rosids
Order: Fagales
Family: Fagaceae
Genus: Quercus
Subgenus: Quercus subg. Cerris
Section: Quercus sect. Ilex
Species:
Q. franchetii
Binomial name
Quercus franchetii
Skan
Synonyms[2]
  • Quercus lanuginosa Franch.

Description

In nature, it forms an evergreen tree up to 15 metres (49 feet) high.[4] Sometimes it is shrubby. When older, it has irregular and tortuous branches. The branches are covered with a creamy white, long lasting tomentum. The buds are small, globular with pointed apex, reddish and white ciliated edge.[4]

The leathery oval leaves measure 5 to 12 centimetres (2 to 4+1⁄2 inches) long by 2.5 to 6 cm (1 to 2+1⁄4 in) wide, and are evergreen (remaining on the plant over winter). They have a cuneate (wedge-shaped) or slightly rounded base, and the upper surface is smooth and shiny, while the underside is densely covered with yellowish fur.[4] The leaf margin is dentate, with 5 to 10 pairs of short teeth, though not near the base, and the leaf sits on a 1–2-cm long furry gray-yellow petiole. The fruit is an acorn which measures 0.9–1.1 cm in length by 0.8 cm across; ovoid, apex depressed but mucronate; silky; short peduncle (1.5–3 cm); enclosed two-thirds by cup; cup 0.8–1.1 cm in diameter, scaly; maturing in 1 or 2 years.[4]

Taxonomy

This species was described in 1899 and dedicated to Adrien René Franchet, a botanist at the Muséum national d'histoire naturelle in Paris. Franchet had a few months earlier named and described this species as Q. lanuginosa,[5] but his name turned out to have been used before, so Skan renamed it as Q. franchetii.[6] It is in subgenus Cerris, section Ilex,[7] resembling Q. lanata.

References
  1. IUCN SSC Global Tree Specialist Group & Botanic Gardens Conservation International (BGCI). 2020. Quercus franchetii. The IUCN Red List of Threatened Species 2020: e.T78917520A162853158. https://dx.doi.org/10.2305/IUCN.UK.2020-1.RLTS.T78917520A162853158.en. Accessed 25 May 2023.
  2. "Quercus franchetii Skan". World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew – via The Plant List. Note that this website has been superseded by World Flora Online
  3. Denk, Thomas; Grimm, Guido W.; Manos, Paul S.; Deng, Min; Hipp, Andrew L. (2017), Gil-Pelegrín, Eustaquio; Peguero-Pina, José Javier; Sancho-Knapik, Domingo (eds.), "An Updated Infrageneric Classification of the Oaks: Review of Previous Taxonomic Schemes and Synthesis of Evolutionary Patterns", Oaks Physiological Ecology. Exploring the Functional Diversity of Genus Quercus L., Cham: Springer International Publishing, pp. 13–38, doi:10.1007/978-3-319-69099-5_2, ISBN 978-3-319-69099-5, retrieved 2022-11-16
  4. Huang, Chengjiu; Zhang, Yongtian; Bartholomew, Bruce. "Quercus franchetii". Flora of China. Vol. 4. Retrieved 5 June 2012 – via eFloras.org, Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
  5. Franchet, Adrien René 1899. Journal de Botanique (Morot) 13: 149
  6. Skan in Forbes, Francis Blackwell Hemsley, William Botting. 1899. Journal of the Linnean Society, Botany 26(178): 513–514 description in Latin, commentary in English
  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 2023-02-18.


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