落石のトドマツーエゾスズダケ群落

抄録

One of the special forest communities represented by Abies sachalinensis-Sasamorpha purpurascans var.borealis is developed at Ochiishi near Nemuro in Hokkaido. In the present paper, the compositions of this community were analysed by four belt-transects. Sasamorpha is generally distributed along the Pacific coast and a very few localities have been known along the Okhotak coast in Hokkaido. The easternmost distribution area of Sasamorpha was also studied accompanying with two quadrates (1m)^2.