羊歯植物の分類学的位置と構成に関する研究
7) ミヤコジマハナワラビの担葉体中における維管束走行
1956 年 69 巻 812 号 p. 76-82
詳細
1956 年 69 巻 812 号 p. 76-82
The vascular branching for the sporophyll in the phyllomophore of Helminthostachys zeylanica was described. Certain supplements were given to the recent observation by Nozu (1955) on the same species and his opinions were criticized. The present writer proposed the term “hetero-marginal method”. in contrast with marginal and extra-marginal method, to designate the vascular branching toward the sporophyll of Helminthostachys zeylanica as the vascular supply for the sporophyll in this species has the tendency to be originating from one, instead of two, adaxial end of _??_-like arrangement of vascular bundles, and to run spirally into the pith of the phyllomophore. The writer also proposed “iso-marginal method” to replace the so-called marginal method, and attempted to establish three types of the methods, in the phyllomophore of the order Ophioglossales, iso-, hetero-, and extra-marginal, in order to express more precisely the character of the vacscular branching.
