密脉柯Lithocarpus fordianus (Hemsley) Chun
密脉柯Lithocarpus fordianus (Hemsley) Chun
38. 密脉柯 黔粤 ，黔粤石栎，密腺石栎
Lithocarpus fordianus (Hemsl.) Chun in Journ. Arn. Arb. 8: 21. 1927; A. Camus, Chenes 3: 618. 1954, Atlas pl. 367. 1948; 中国高等植物图鉴 1: 425, 图850. 1972. ——Quercus fordiana Hemsl. in Hook. Ic. Pl. pl. 2664. 1900 et in Journ. Linn. Soc. Bot. 35: 478. 1903. ——Synaedrys fordiana (Hemsl.) Koidz. in Bot. Mag. Tokyo 30: 195. 1916.
乔木，通常高10米以内，胸径15厘米，当年生枝、叶背及花序轴密被黄灰色长柔毛及有分枝的星芒状柔毛。叶厚纸质，长椭圆形，两侧近于平行，或为倒卵状椭圆形，长10-25厘米，宽3-9厘米，顶部短突尖或尾状，少有渐尖，基部宽楔形，有时一侧略短，叶缘至少在近顶部有疏裂齿，中及侧脉在叶面裂槽状凹陷，侧脉每边16-25条；少有15条，上部的直达叶缘裂齿，其余的通常彼此连结，支脉纤细而密接，彼此近于平行，两面同色；叶柄长1-3 厘米。通常雌雄同序，花序长3-10厘米；上段着生雄花，雌花很少超过10朵，每3朵一簇，有时单朵散生，花柱3枚，初花时长约1.5毫米，后期达3毫米。果序长2-5厘米，轴粗约5毫米以内，成熟的壳斗少数，壳斗深碗状，高20-30毫米，高25-35毫米，包着坚果2/3-3/4，小苞片与烟斗柯的相似，被棕灰色微柔毛及鳞秕，稀几无毛，坚果半圆形，顶部圆或平坦，被毛，果壁比壳壁厚，厚4-10毫米，角质，果脐占坚果面积一半以上，顶端有檐状边缘。花期5-9月，果次年8-10月成熟。
产云南南部（蒙自、思茅以西至双江、沧源等地）、贵州西南部? 生于海拔700-1 500米常绿阔叶林中，湿润地方较常见。模式标本采自云南蒙自(?)。
木材与烟斗柯同类。
《Flora of China》 Vol. 4 (1999)
39. Lithocarpus fordianus (Hemsley) Chun, J. Arnold Arbor. 8: 21. 1927.
命脉柯 mi mai ke Quercus fordiana Hemsley, Hooker’s Icon. Pl. 27: t. 2664. 1901; Synaedrys fordiana (Hemsley) Koidzumi.
Trees usually less than 10 m tall; branchlets, leaf blades abaxially, and inflorescences rachis tawny pilose and with stellate hairs. Petiole 1-3 cm; leaf blade oblong to obovate-elliptic, 10-25 × 3-9 cm, thickly papery, concolorous, base cuneate and sometimes asymmetric, margin at least near apex remotely dentate, apex acute, caudate, or rarely acuminate; secondary veins (15-)20-28 on each side of midvein, basal ones fusing near margin, apical ones ending in teeth; tertiary veins abaxially slender, evident, subparallel. Inflorescences usually androgynous, 3-10 cm; male flower on distal 1/2. Female inflorescence cupules fewer than 10, in clusters of ca. 3 or sometimes solitary. Infructescence rachis ca. 5 mm thick. Cupule cupular, 2-3 × 2.5-3.5 cm, enclosing 2/3-3/4 of nut, wall ca. 1 mm thick; bracts triangular to rhomboid, center and margin ridged, tawny puberulent and scurfy or rarely glabrescent. Nut turbinate, ca. 2 × 3 cm, hairy, apex rounded or flat, wall 4-10 mm thick; scar covering more than 1/2 of nut, convex. Fl. May-Sep, fr. Aug-Oct of following year.Broad-leaved evergreen forests, frequent in moist sites; 700-1500 m. SW Guizhou, S Yunnan [Vietnam]
别名：黔粤石栎;密腺石栎;密脉石栎;黔粤;密脉椆;密脉稠;
科名：壳斗科 Fagaceae
属名：柯属 Lithocarpus
38. 密脉柯 黔粤 ，黔粤石栎，密腺石栎
Lithocarpus fordianus (Hemsl.) Chun in Journ. Arn. Arb. 8: 21. 1927; A. Camus, Chenes 3: 618. 1954, Atlas pl. 367. 1948; 中国高等植物图鉴 1: 425, 图850. 1972. ——Quercus fordiana Hemsl. in Hook. Ic. Pl. pl. 2664. 1900 et in Journ. Linn. Soc. Bot. 35: 478. 1903. ——Synaedrys fordiana (Hemsl.) Koidz. in Bot. Mag. Tokyo 30: 195. 1916.
乔木，通常高10米以内，胸径15厘米，当年生枝、叶背及花序轴密被黄灰色长柔毛及有分枝的星芒状柔毛。叶厚纸质，长椭圆形，两侧近于平行，或为倒卵状椭圆形，长10-25厘米，宽3-9厘米，顶部短突尖或尾状，少有渐尖，基部宽楔形，有时一侧略短，叶缘至少在近顶部有疏裂齿，中及侧脉在叶面裂槽状凹陷，侧脉每边16-25条；少有15条，上部的直达叶缘裂齿，其余的通常彼此连结，支脉纤细而密接，彼此近于平行，两面同色；叶柄长1-3 厘米。通常雌雄同序，花序长3-10厘米；上段着生雄花，雌花很少超过10朵，每3朵一簇，有时单朵散生，花柱3枚，初花时长约1.5毫米，后期达3毫米。果序长2-5厘米，轴粗约5毫米以内，成熟的壳斗少数，壳斗深碗状，高20-30毫米，高25-35毫米，包着坚果2/3-3/4，小苞片与烟斗柯的相似，被棕灰色微柔毛及鳞秕，稀几无毛，坚果半圆形，顶部圆或平坦，被毛，果壁比壳壁厚，厚4-10毫米，角质，果脐占坚果面积一半以上，顶端有檐状边缘。花期5-9月，果次年8-10月成熟。
产云南南部（蒙自、思茅以西至双江、沧源等地）、贵州西南部? 生于海拔700-1 500米常绿阔叶林中，湿润地方较常见。模式标本采自云南蒙自(?)。
木材与烟斗柯同类。
《Flora of China》 Vol. 4 (1999)
39. Lithocarpus fordianus (Hemsley) Chun, J. Arnold Arbor. 8: 21. 1927.
命脉柯 mi mai ke Quercus fordiana Hemsley, Hooker’s Icon. Pl. 27: t. 2664. 1901; Synaedrys fordiana (Hemsley) Koidzumi.
Trees usually less than 10 m tall; branchlets, leaf blades abaxially, and inflorescences rachis tawny pilose and with stellate hairs. Petiole 1-3 cm; leaf blade oblong to obovate-elliptic, 10-25 × 3-9 cm, thickly papery, concolorous, base cuneate and sometimes asymmetric, margin at least near apex remotely dentate, apex acute, caudate, or rarely acuminate; secondary veins (15-)20-28 on each side of midvein, basal ones fusing near margin, apical ones ending in teeth; tertiary veins abaxially slender, evident, subparallel. Inflorescences usually androgynous, 3-10 cm; male flower on distal 1/2. Female inflorescence cupules fewer than 10, in clusters of ca. 3 or sometimes solitary. Infructescence rachis ca. 5 mm thick. Cupule cupular, 2-3 × 2.5-3.5 cm, enclosing 2/3-3/4 of nut, wall ca. 1 mm thick; bracts triangular to rhomboid, center and margin ridged, tawny puberulent and scurfy or rarely glabrescent. Nut turbinate, ca. 2 × 3 cm, hairy, apex rounded or flat, wall 4-10 mm thick; scar covering more than 1/2 of nut, convex. Fl. May-Sep, fr. Aug-Oct of following year.Broad-leaved evergreen forests, frequent in moist sites; 700-1500 m. SW Guizhou, S Yunnan [Vietnam]