Quercus cambodiensis Hickel & A.Camus, 1923

Binh, Hoang Thi, Ngoc, Nguyen Van, Tagane, Shuichiro, Toyama, Hironori, Mase, Keiko, Mitsuyuki, Chika, Strijk, Joeri Sergej, Suyama, Yoshihisa & Yahara, Tetsukazu, 2018, A taxonomic study of Quercus langbianensis complex based on morphology and DNA barcodes of classic and next generation sequences, PhytoKeys 95, pp. 37-70 : 55

Quercus cambodiensis Hickel & A.Camus Fig. 9

Quercus cambodiensis Hickel & A.Camus, Bull. Mus. Natl. Hist. Nat. 29: 600 (1923); [P. H. Lecomte et al.] Fl. Indo-Chine 5: 946 (1929). Quercus auricoma auct. non A.Camus; Tagane et al., Tree Fl. Bokor National Park: 277 (2017).

Type.

CAMBODIA. ‘‘ Mont. De Elephant , sol argileux tourbeu’’, 1,000 m, 6 Aug. 1919, E. Poilane 215 (lectotype: P [P00379257!]; isolectotypes: P [P00379258!], NY [00253790, image!], designated here) .

Distribution and habitat.

CAMBODIA. Kampot Province, Bokor National Park. Quercus cambodiensis is common in moist evergreen forest on the top plateau of Mt. Bokor.

Additional specimens examined.

CAMBODIA. Kampot Province, Bokor National Park: 10°37'32.30"N, 104°05'15.84"E, alt. 844 m, 17 Oct. 2012, Tagane S., Fuse K., Choeung HN. C4302 [fr.] (FU, the herbarium of Forest Administration of Cambodia); 10°37'15.48"N, 104°05'10.71"E, 888 m, 9 Dec. 2011, Toyama H., Tagane S., Ide T., Phourin C., Nagamasu H., Yahara T. 1834 [fr.] (FU, the herbarium of Forest Administration of Cambodia); 10°38'12.59"N, 104°02'06.37"E, 1014 m, 4 Dec. 2011, Toyama H., Tagane S., Kajisa T., Sakata K., Nobayashi M., Mihara N., Ide T., Chhang P., Nagamasu H. 1458 & 1541 (FU, the herbarium of Forest Administration of Cambodia);; 10°37'16.77"N, 104°01'52.32"E, 1043 m, 17 Dec. 2013, Toyama H., Fuse K., Iwanaga F., Rueangruea S., Suddee S., Kim W., Loth M. 6276 (FU, the herbarium of Forest Administration of Cambodia); 10°38'12.59"N, 104°02'06.37"E, 1000 m, 12 Dec. 2013, Fuse K., Suddee S., Rueangruea S., Iwanaga F., Loth M. Fuse K. 6342 (FU, the herbarium of Forest Administration of Cambodia).

Note.

Hickel and Camus (1923) described Quercus cambodiensis Hickel & A.Camus based on two specimens collected by E. Poilane (Poilane 215 and Poilane 270) from Cambodia. Deng et al. (2010) selected Poilane 215 as the lectotype for Q. cambodiensis . However, there are three specimens of Poilanei 215 in P [P00379257, P00379258] and NY [00253790], amongst which only one specimen [P00379257] represents the diagnostic traits of nuts and cupules. Thus, specimen [P00379257] was selected as the lectotype of Q. cambodiensis .

Figures

Figure 9. Quercus cambodiensis Hickel & A. Camus. A Leafy twig B Abaxial side of mature leaf C Infructescence and fruits D Nut E Basal scar of the nut. Materials: A-E from Tagane et al. 4302.