1956 年 76 巻 12 号 p. 1350-1354
There are 29 kinds of domestic ferns which contain phloroglucide, effective for removing tapeworm. Of these, a large amount of phloroglucide is contained in Dryopteris crassirhizoma Nakai, D. polylepis C. CHRIST., D. cycadina C. CHRIST., D. dickinsii C. CHRIST., D. tokyoensis C. CHRIST., D. kominatoensis Tagawa, D. hondoensis KOIDZ., and D. gymnophylla C. CHRIST. These ferns may be discriminated by microscopic examination of their subterranean portions to see the number of cell layers in hypodermis (sclerenchyma), form of internal glandular hair, presence or absence of tannin crystals, and the number of vascular bundles in stipe. Difference in the form of internal glandular hair and presence or absence of tannin crystals are interesting characteristics in the classification of this section. These points are summarized in Table I.