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CONTRIEUnONS TO THE MYCOIOGICAL FLORA OF JAPAN, m. (1) 



ON THE JAPANESE SPECIES OF PHRAGMIDIUM. 



MIKIO KASAI, Xüfükushi. 

 (With Plate I.) 



INTRODUCTION. 



Tlie observation which 1 propose t<> report iipou in the following pages was 

 undertaken with a view to revising the species of Fhragmidixmi existing in our 

 country, and, if possible, to correctly describing a few of them in a manner that 

 can readily be of service to those who are interested in the subject. 



Since DiETEL (8.9) recordetl forty-six species of Phragmidium in hit monogra- 

 phic paper in 1905, eight more species have been described ; namely. Ph. Puhi- 

 Thunhergii Knsauo, Ph. onenkde Sydow, Ph. Butleri Sydow, Ph. Xambnamim Diet., 

 Ph. Posae-iicicuktiis Liro, Ph. Rubi var. candicantiitm Vleugel, Ph. P((bi-sa.vatiUs 

 Liro, and Ph. Englcrianum Diet. Consequently about fifty four species have 

 hitherto been known to tlie scientific world. Of these fifty four species, »mly ten 

 have been supposed to l^elong to our flora. 



In the present paper I have Ix-en able to increase the number »if our species 

 of Phragmidium to seventeen. Eleven of these are peculiar to .Tapan and three 

 are new to science. 



(1). Prepared under the direction of Prof. I>r. K. MIYAP.E. Contributions. I.-T. MIYAKE. 

 On Puccinia Parasitic on the Umbelliferae of Japan. Joum. of the SapjK>ro Agric. (Vill. Vol. II. Pt. 

 3. 1906. Contributions. II. S. ITO, On the Uredineae Para-^iiic on the Japanese ( Jraniineae. .Joum. of 

 the Coll. of Agric, Toh..ku Imp. Univ., Vol. 3, No. 2, 19' 9. 



