Germination and photo-induction of polarity in the spherical cells regenerated from protoplasm fragments ofBoergesenia forbesii Kimiharu IshizawaSachito EnomotoShunji Wada OriginalPaper Pages: 173 - 186
Thyrsopterorachis, gen. nov., a tree fern rachis from the upper cretaceous of Hokkaido, Japan Harufumi NishidaMakoto Nishida OriginalPaper Pages: 187 - 195