抄録
There have been many reports on acorn shapes, mostly for forest trees, and few for planted trees in urban areas. Acorn shapes were investigated for five species (Quercus serrata, Q. glauca, Q. myrsinifolia, Lithcarpus edulis, and Castanea crenata) distributed in the city of Musashino, Tokyo. The results revealed that acorns of Q. glauca and Q. myrsinifolia were smaller in length, width, and volume than those of Q. serrata and Lithocarpus edulis. There were differences in length and width of acorns between Q. glauca and Q. myrsinifolia.