本期接第61期的栲属(Castanopsis),第62期的栎属(Quercus)和三棱栎属(Trigonobalanus),继续介绍同是壳斗科(Fagaceae)的石栎属(Lithocarpus)。石栎属约有300个种。它们的分布范围,北至日本的西南部、中国至喜马拉雅山麓,东南亚至新几内亚(图1)。另外,还有1个种分布在北美洲西部的加里福尼亚地区。在马来西亚的植物区系(马来西亚和苏门答腊至新几内亚的范围),约有110个 This issue follows the 61st Castanopsis, 62nd Quercus and Trigonobalanus, and continues with Lithocarpus, which is also known as the Fagaceae. Quercus is about 300 species. Their distribution ranges from the north to the southwest of Japan, from the foothills of China to the Himalayas and from Southeast Asia to New Guinea (Figure 1). In addition, there is a species of distribution in California in western North America. In Malaysia flora (range from Malaysia and Sumatra to New Guinea), there are about 110