カブダチジャノヒゲ自生地の植物社会学的研究

抄録

Phytosociological research was carried out in Aichi and Gifu prefectures where spontaneous growths of Ophiopogon japonicus var. caespitosus were found in the following two communities : Quercus variabilis community, which belongs to Carpinio-Quercion serratae, and Quercus variabilis-Quercus glauca community, which belongs to Ardisio-Castanopsion sieboldii. The potential natural vegetation of this plant's habitat belongs to Ardisio-Castanopsion sieboldii. O. japonicus var. caespitosus was found primarily in association with this alliance, whereas O. japoincus was not. O. japonicus var. caespitosus is connectsd to this alliance (forest) by a breeding system with the seed, as compared to O. japonicus, which has a breeding system with the slender rhizome. For these reasons, O. japonicus var. caespitosus can be recognized as one of the characteristic species of Ardisio-Castanopsion sieboldii.