米槠Castanopsis carlesii (Hemsl.) Hayata.

别名：柯木;锥子;圆子树;锥柴;细枝栲;西南米槠;米锥;米子圆;小叶栲;红丝栗;长尾尖叶槠;白锥;白柯;料子柴;卡氏槠;长尾栲;柯子;长尾柯;细叶丝栗;白椎;白橼;米椎;未槠;小红栲;小叶槠;米子柴;小叶楠;细米圆;长尾尖槠;

科名：壳斗科 Fagaceae

属名：锥属 Castanopsis

《中国植物志》第22卷066页
  50. 米槠 米锥、白栲、石槠、小叶槠、米子子槠、细米橼，白橼（广东），米锥（广西），长尾栲、锯叶长尾栲（台湾）
  Castanopsis carlesii (Hemsl.) Hayata, Gen. Ind. Fl. Form. 72. 1917; Chun, Ic. Pl. Sin. 2, t. 59. 1929; A. Camus, Chatiag. 486. 1929; 中国高等植物图鉴 1: 416.图823. 1972.——Quercus carlesii Hemsl. in Hook. Ic. Pl. 26, pl. 2591. 1899. ——Synaedrys carlesii (Hemsl.) Koidz. in Bot. Mag. Tokyo 30: 186. 1916. ——Shiia carlesii (Hemsl.) Kudo in Journ. Soc. Trop. Agr. 3: 17. 1931. ——Q. longicaudata Hayata, Ic. Pl. Form. 3: 182, f. 29. 1913; Pasania longicaudata (Hayata) Hayata, l. c. ; Lithocarpus longicaudata (Hayata) Hayata, Gen. Ind. Fl. Form. 72. 1917. ——Shiia longicaudata (Hayata) Kudo et Masamune ex Masamune in Bot. Mag. Tokyo 44: 405. 1930. ——Castanopsis longicaudata (Hayata) Nakai in Journ. Jap. Bot. 15: 266. 1939. ——Q. stipitata Hayata ex Koidz. in Bot. Mag. Tokyo 30: 187. 1916.——L. stipitata (Hayata) Koidz. in l. c. 39: 2. 1925. ——C. stipitata (Hayata) Nakai in l. c. 15: 266. 1939; 台湾植物志2: 55. 1976. ——Q. cuspidata auct. non (Thunb.) Schott.: Henry, List. Pl. Form. 90. 1896; Rehd. et Wils. in Sarg. Pl. Wils. 3: 204. 1916 et auctt. plur. ——Q. junghuhnii auct. non Miq. : Hayata in Journ. Coll. Sci. Univ. Tokyo 25: 203. 1908.

《Flora of China》 Vol. 4 (1999)
46. Castanopsis carlesii (Hemsley) Hayata, Icon. Pl. Formosan. 6 Suppl.: 72. 1917.
小红栲 mi zhu
Trees ca. 20 m tall; young shoots and rachis of inflorescences sparsely covered with reddish brown, lamellate, waxy scalelike trichomes. Petiole to ca. 1 cm, base becoming thick, pillow-shaped; leaf blade lanceolate to ovate, 4-12 × 1-4.5 cm, leathery, abaxially with layers of reddish brown to yellowish brown, slightly adnate, small, lamellate scalelike trichomes when young but grayish brown to silvery with age, base slightly cuneate to broadly so and oblique, margin entire or with a few shallow teeth, apex acuminate to narrowly caudate; midvein adaxially flat to slightly impressed but impressed when dry; secondary veins 8-13 on each side of midvein. Rachis of male catkins glabrous or glabrescent. Infructescence rachis 2-3 mm thick, glabrous. Cupule subglobose to ovoid, 1-1.5 cm, outside yellowish brown to reddish brown feltlike pubescent and covered with waxy scalelike trichomes, wall 0.5(-1) mm thick; bracts spinelike or reduced to tubercles. Nut subglobose to broadly conical, apex shortly pointed; scar basal, ca. 5 mm in diam. Fl. Mar-Jun, fr. Sep-Nov of following year.* Mixed and broad-leaved evergreen forests, mixed mesophytic forests; below 1700 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Taiwan, Yunnan, Zhejiang
The variation in cupule spines length is continuous between the two extremes, and it is not always possible to distinguish the two varieties.