1. Corolla tube formation in six species of apocynaceae

   • Eisho Nishino

   OriginalPaper Pages: 1 - 17

2. Productivity and mineral cycling in an oak coppice forest 1. Structure and phytomass of the forest

   • Makoto Kimura
   • Masaki Funakoshi
   • Kozue Matsuda

   OriginalPaper Pages: 19 - 33

3. Habitat gradient and reproductive habits of the sevenStellaria species in Japan

   • Takako Ankei

   OriginalPaper Pages: 35 - 48

4. Studies on the ultrastructure and taxonomy of the genusTetraselmis (Prasinophyceae)

   • Terumitsu Hori
   • Richard E. Norris
   • Mitsuo Chihara

   OriginalPaper Pages: 49 - 61

5. Distribution and habitat of JapanesePotamogeton

   • Yasuro Kadono

   OriginalPaper Pages: 63 - 76

6. Three species groups in American trilliums as revealed by compatibility with an Asian species

   • Tutomu Haga
   • Robert B. Channell

   Short Communication Pages: 77 - 80