92 7'J^ BOTANICA L MAGAZIM:. ^Voi. xxxiii. No. 388. 



germinated from the carpospores after a half year of resting 

 period. The result I have now obtained .from the experi- 

 ment wholh- upsets this assumption. Certain points of differ- 

 ence between the single-celled sporelings of autumn and the 

 rounded carpospores liberated from matured frond in spring 

 now attract my attention. The former measure 10-11/^. in 

 diameter while the latter lO-l^/^. The arachnoidal chromo- 

 plasts in the former have no arms terminating in knobs as 

 found in the latter. The sporangial wall of the former is much 

 thicker than that of the latter. I do not positively state that 

 these dift'erences are evidences of their different origins. But 

 they are not to be overlooked as mere trifles. 



The above statement may contain may points which are 

 quite different from what the modern botanists will expect. It 

 requires repeated observations. Similar experiments are now 

 being carried on in the same culture ground, and the result will 

 be treated as Report II. 



Sapporo, December 15, 191S. 



