21^8 THE BOTANICAL MAGAZINE. LVoi. xxxv. Ko. 4is. 



Explanation of Plate lY. 



Figs. 1, 3-11 2000/1, Fig. 2 3000/1. 

 Fig. 1. Tiiree vegetative cells in the cross section of tliallus. Minute structure of 



pyrenoifl is shown in each cell. In a and /> its surface view is given and 



in c, its cross-section. 

 Fig. 2. a-h. Various stages of nuclear division, k, three filaments with open ends. 



I, two filaments united into a thick thread. 

 Fig. 3. Vegetative cell with dividing nucleus in polar view. 

 Figs. 4-7. Four successive stages of the division of antheridium. 

 Fig. 8. Sperinatia set free. 

 Fig. 9. Two liberated carpospores. 



Fig. 10. Three carpogonia ; the middle one with spermatium on trichogyne. 

 Fig. 11. Four spermatia upon a single carpogoniura. 



Resume of the Article in Jaiianese. 



HiTOSHi KojiMA :— Serobiological Relationships between Gymno- 

 sperms and Dicotyledons. 



The serodiagnostic investigation upon the seed-albumen of fifty- 

 two Dicotyledons and eight Gyranosperms by means of precipitin- 

 method modified by Dr. KokETSU lead the author to draw the follow- 

 ing conclusion concerning the phylogeiietic affinity between these two 



phyla. 



In general Dicotyledons stand in very remote relationship to 

 Gymnosperms except Cycads, which, as some systematists such as 

 Hallier claim, may have closer affinity to Dicotyledons especially 

 to Magnolia. 



