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there the under-growth is sparse with but poor covering of trees; it is 

 indeed on such places that mushrooms of rich flavor and good quality 

 abound. 



6. Shinomura-dainichizan, Minami Kuwata County, Kyoto Pre- 

 fecture. 



The underlying rocks of the place belongs to the Palaeozoic Formation 

 forming in most places denuded barren ridges. Where only a thin coating 

 of soil and humus are found with a persistent growth of low pines 40 to 

 50 years old, the best mushrooms are obtained. 



7. Suchi Pine Grove, Funai County, Kyoto Prefecture. 



The trees are mostly 20 years old and grow on a plain of alluvial 

 origin. The soil is heavy and is hardly permeable so that under one foot 

 the hole fills with water. Here bushes grow wonderfully and in a 

 thick coating of raw humus the rootlets of pines stretch out in all 

 directions. 



In addition to the above-mentioned places researches were made 

 at the following places: — 



Mikatagahara, Hamana County, Shidzuoka Prefecture ; Sekidzu, Kurita 

 County, Shiga Prefecture; Kanayama, Nishiibaraki County, Ibaraki Pre- 

 fecture ; Nagano, Minami-kawachi County, Osaka Prefecture ; Matsushima, 

 Miyagi County, Miyagi Prefecture; Yamanaka, Enuma County, Ishikawa 

 Prefecture; Higashiyama, Kita-aizu County, Fukushima Prefecture. 



Everywhere the rule obtains that invariably follows where mushrooms 

 are found there rootlets of Akamatsu exisit and where there are no 

 rootlets, there are no mushrooms. Even in crevices of granite rock, not 

 perfectly decomposed, mushrooms are found so long as there is a fair 

 intrusion of pine roots. Indeed, these roots and rootlets always give rise 

 to " Shiro " (white hyphae) which again on their turn give rise to 

 mushrooms. Closer examination of these rootlets will at once show that 

 these apparently sterile roots are living and that they all have broom-like 

 endings. 



Thus, we are led to conclude from our personal researches and 

 experiments in inoculation carried out in the Institute that Matsudake 

 is nothing else than the Ectotrophic Mycorhiza of the Akamatsu. The 

 following facts are established: — 



