'=0n the systematic Position of 3Iitrastemou, as a 



Genus representing a special Tribus of 



the Rafflesiacese. 



By 



B. HAYATA. 



CONTAINTS. 



I. Iiitroduction. 

 n. Extemal Morphology of 3Iifrastemm, esiJeciallj «itli 

 regaid to its systematic Position, 



III. Inuer Morphology of 3Iitrastemo)i, especially with 



regards to its systeuiatic Positiou. 



1. Anntomy of the iDtmmatricvl Tissue. 



2. Structure of the Peduncle. 



IV. Systematic Positiou of Mitrostemon. 

 Y. Resume. 



VI. Litemture consulted. 



I. Introduction. 



INIore thau thirty yeai-s ago, there was recorded from Kiushiu (TASmRO), 

 a southeru islaud of Japan, a floweriug parasite of very peculiar character 

 ■widely different from any other plant, v.-hether parasitic or not, theu knowu 

 in Japau. The record of the parasite then given was an exti-emely irapei-fect 

 one, with a very rough sketch of a speeimen of a peduucle without any 

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

 long time, it did not come to the notice of auy professional Ix)tanist, either 



* An nrticle in German on this same subject nppeared in Exgl. Bot. Jahrh. LI. Heft.-l, pp. 

 1G4-176, T. I. 



