An ecological survey of vegetation was made again in the Muronouchi crater in Mt.Sambe. The vegetation was analyzed on four zones in the crater by using the quadrat method. The communities of Sasa pectorius，Salix daiseniensis and Fafus crenata were seen on the south side slanting surface of Mt. Otoko-Sambe. The forest on the slant ing surface of fun in Muronouchi crater could be distinguished in four communities．These are communities of Quercus crispola, Castanea pubinervins, Carpinus and Salix daiseniensis. It was recognized that there was a common vegetation pattern [Salix daisensis→Ｘ→Quercus crispola] both in the‘M’and in the‘O’areas.