*On the systematic Position of Mitrastemon 9 as a 



Genus representing a special Tribus of 



the Rafflesiacese. 



By 

 B. IIAYATA. 



CONTAINTS. 



I. Introduction. 



II. External Morphology of Mitrastemon, especially with 

 regard to its systematic Position. 



III. Inner Morphology of Mitrastemon, especially with 



regards to its systematic Position. 



1. Anatomy of the intramatrical Tissue. 



2. Structure of the Peduncle. 



IV. Systematic Position of Mitrastemon. 

 V. Resume. 



VI. Literature consulted. 



I. Introduction. 



More than thirty years ago, there was recorded from Kiushiu (TASHIRO), 

 a southern island of Japan, a flowering parasite of very peculiar character 

 widely different from any other plant, whether parasitic or not, then known 

 in Japan. The record of the parasite then given was an extremely imperfect 

 one, with a very rough sketch of a specimen of a peduncle without any 

 attaching organ, and apparently lacking one of the genital organs. For a 

 long time, it did not come to the notice of any professional botanist, either 



* An article in German on this same subject appeared in ENGL. Bot. Jahrb. LI. Heft.-l, pp. 

 164-176, T. I. 



