Quercus acuta Thunb.

DENG, Min, LI, Qiansheng, COOMBES, Allen & XU, Jin, 2013, Typification of Quercus acuta Thunb. and Q. glauca Thunb. (Fagaceae), Phytotaxa 137 (1), pp. 27-34: 30-31

publication ID

http://doi.org/ 10.11646/phytotaxa.137.1.3

persistent identifier

http://treatment.plazi.org/id/0383446D-FFAA-FFAD-16A8-F9AF3B50FE3F

treatment provided by

Felipe

scientific name

Quercus acuta Thunb.
status

 

Quercus acuta Thunb.   in A. Murray, Syst. Veg. ed. 14: 858 (1784).

Lectotype (designated here):— JAPAN. "e Japonia", Thunberg C.P. s.n. [UPS-THUNB 22386] (UPS! Fig. 3). ≡ Cyclobalanopsis acuta (Thunberg) Oersted, Vidensk. Meddel. Naturhist. Foren. Kjøbenhavn   18: 78 (1866).  

Additional specimens cited:

JAPAN, Kansai: Shiga, Suzumitoge in Mt. Hira, Shiga-cho , Shiga-gun , alt. 500m, 24 June 1973, Murata, G. & Nishimura 1176 (PE); Without detailed collection information, Nov. 1863, Hooker, s.n. (K)   .

CHINA, Hongkong, Hongkong , Hongkong Botanical Garden, 1 July 1935, Chen, W.Y. 27317 (PE), Chen, W.Y. 10232 & 10232 A (PE, IBSC)   .

Habitat: Evergreen Forest.

Distribution: This species is commonly distributed in Japan and southern Korea ( Ohashi et al. 2006, 2007), with a very limited distribution in SE China (Guangdong province and Hongkong) ( Deng et al. 2008).

Leaf epidermal features: The abaxial leaf surfaces were covered by platelet wax flake. The epidermal cells of the abaxial surface were flat and polygon-irregular in shape. The appressed lateral attached trichomes (ALA) ( Fig. 5A and B View FIGURE 5 , shown by black arrows) and solitary uniseriate trichomes (U) ( Fig. 5A and B View FIGURE 5 , shown by white arrows) were commonly present on the abaxial surface. The stomata were non-typical cyclocytic type. The stomata size (L × W) is 18.39 ± 0.56 × 16.84 ± 0.56 with the stomatal frequency 808.2 ± 6.8/mm 2.

Observations: Q. acuta   is similar to Q. sessilifolia Blume   and Q. morii Hayata. It   differs from Q. morii   in its almost entire leaf margin. It differs from Q. sessilifolia   in its elliptic or ovate leaf blade and long petiole of about 2.0– 2.7 cm, compared to the oblong-elliptic to lanceolate-elliptic leaf blade and petiole 0.5–1.0 cm in Q. sessilifolia   .

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Fagales

Family

Fagaceae

Genus

Quercus

Loc

Quercus acuta Thunb.

DENG, Min, LI, Qiansheng, COOMBES, Allen & XU, Jin 2013
2013
Loc

Cyclobalanopsis acuta (Thunberg) Oersted, Vidensk. Meddel. Naturhist. Foren. Kjøbenhavn

Oersted 1866: 78
1866