1961 年 81 巻 2 号 p. 303-305
A crystalline phlorolucinol derivative was isolated from crude filicin of the ether extract of the rhizome of Dryopteris bissetiana (BAK.) C. CHR. and it was identified as aspidinol. Its yield was 0.17% of the dried rhizome. This substance was also obtained in the same yield from D. pacifica (NAKAI) TAGAWA. The chief component of the ether extract of rhizomes of these two kinds of ferns is considered to be aspidinol but this is the first time that it was found from Japanese ferns. Aspidinol was also obtained from D. sacrosancta KOIDZ. and D. varia (L.) O. KTZE.