190 



JAPANESE BOTANICAL LITERATURE. 



Hayata, B. : — The Vegetation of Mt. Fuji, with a 

 Complete List of Plants found on the Mountain and Botanical 

 Map showing their Distribution, 125 pages, with 8 plates, a 

 Coloured Botanical Map and 35 figures in the Text. (Maruj^a 

 et Co. Tokyo) 1911. In this work; the author has deter- 

 mined, the difference of the mountain-vegetation according 

 to altitude and exposure. So far as the exposure alone is 

 concerned, the vegetation may be divided into two classes : — 

 the northern and southern. On the northern slope, the ever- 

 green conifer predominates, while on the south the deciduous 

 (broad leaved) are in control. To ascertain the cause of this 

 divergence, he has examined the physiography of the mountain 

 and found that the divergence may be ascribed to the difference 

 of the climatic factors, and principally to that of the satura- 

 tion-deficits on the two sides. Next, he has considered the 

 general aspect of the plant-formation, dividing the whole 

 mountain into four parts, and describing the formations 

 separately. On the southern side, he has found that the forest- 

 formation attains its most luxuriant growth at the 2000 m. 

 elevation. Next, he has dwelt upon each region more particul- 

 arly and stated the maximum and minimum limitations of the 

 growth. Then the zonation of plant-regions has been discussed 

 zone by zone. The species of each region are mentioned and 

 the list of plants given. He has also summarized all the plants 

 in one table, and given a short note on the general aspect of 

 the flora of the mountain. The plants contained in the table 

 are in all 739 species belonging to 96 families. Next, he has 

 considered the effect of fires, and come to the conclusion that 

 the present prairie is mainly due to forest-fires. Lastly he has 

 considered the cause of the absence of Pinus pumila and stated 

 that the wind direction is not suitable for conveying the seeds 

 of the Pinus from the neighbouring mountains to the volcano. 



Hayata, B. : — Materials for a Flora of Formosa, 



Supplementary notes to the Enumeratio Plantarum Formosa- 



