28 



south Sasa nipponica and Sasa particulates extend to Kiusiu. The whole 

 genus flourishes most luxuriantly in middle Japan, contributing greatly to 

 the characteristic physiognomy of our mountain vegetation. Here we have 

 another notable example of the restricted distribution, which characterises 

 most of the bambuseous genera, 1} and we have good reason to assume that 

 the present genus is a natural monophyletic group, 2) whose " Entstehungscen- 

 trum " lie probably also within its present domain. Yet it is quite possible 

 that the adjoining districts, such as Corea, northern China, etc. may shelter 

 some unknown members of the genus; and the addition of new species may 

 perhaps be expected from these regions. 



Systematic Position of the Genus Sasa and Eemaeks 

 on the Classification of the Bambuse.e. 



We may perhaps add a few words on the systematic position of our 

 new genus. Though our present knowledge of the anatomical structure of 

 several exotic forms remains incomplete, we may still with good reason draw 

 up the following diagram : G) 



Fruit— caryopsL 



Stamens 3 



Artmdinarieae 



Phylfoslaehijs, Ai-uruliuaria, 



Fruit— nut or drupe 



Koots of Arundinaria-type 



Stamens 6 



I I 



Etibambusese Eendrocalamese 4) 



Sasa , Bambusa, 



Dendroculamus, 



Eoots of Ba m'jusa-iype. 



1) S cliroter, Der Bambus uml seine Bedentung als Nutzpflanze. Basel. 1885, p. 18; 

 Munro, Monogr. Bamb. p. 4. 



2)Engle r, Entwicklungsgcschichte der extratropi.-chen Florengebicte. Theil 11, p. 322. 



3) We were unable to examine representatives of the subtribe Melocannese. 



4) Dendroealamese, which is in many respects closely allied to the Eubambusea?, 

 seems to be of a more recent descent, to judge from the foim of its fruit, which deviates 

 from that of the whole remaining members of the Graminese, as also from its restricted 

 distribution in the tropical region of the eastern hemisphere. 



