300 Kusano, Further studies on Aeginetia itidica. 



Explanation of Figures. 



All figures except Figs. 13 — 16 are drawn with the aid of the camera 

 lucida from the fresh materials and magnified 130 times. 



Fig. 1. An adult embryo in a ripe seed. 



Fig. 2. The same shown in optical section. Fragments of testa are 

 attached to the radicular end, 



Fig. 3. A seed at the beginning of germination, with some swollen 

 epidermal cells at the radicular end appearing outside the testa. 



Fig. 4. A seed at somewhat later stage. 



Fig. 5. An embryo in the germinated seed as shown in Fig. 3. 



Fig. 6. The same in the seed shown in Flg. 4 (optical section) Starch- 

 granules accumulate at the median portion. 



Fig. 7. Radicular end of a seedling showing one of the globular cells 

 protruded into a papilla. 



Fig. 8. The same with füll grown tendrils. 



Fig. 9. The same showing one of the tendrils attached to a host (Zingiber). 

 Its apex is penetrating between two epidermal cells of the host. 



Fig. '10. The same with a rauch shrinked tendril. 



Fig. 11. The same with a tendril twined round a root-hair of a host 

 (Zingiber). 



Fig. 12. Two seedlings at advanced stage. In the right is shown an 

 entire embryo taken out df the endosperm. 



Figs. 13 — 15. Tubercles at several stages of development. ca. 40. 



Fiff. 16. A shoot and roots derived from a tubercle. Nat. size. 



