S. I TO. 



ROSTRUPIA t.a-eih. 



1. Rostrupia Elymi (West.) Lagvrh. in Jouni. dc Bot., 3, 1889,(185); 

 Sacc, Syll., 9, 1S91, (316). 



Syn. : Piiiciiiia Elymi West., in Bull. Brux., 185 I, (40S) ; Sacc, S)-ll., 

 7, 1S88, (656). 



Piii-n'iiia ti-uxrticulata Ik-rlc. ct Cult., North Pacific I-^xpc-d. 

 n. 130; Sacc, Syll., 7, iSSS, (732). 



Hat. On E/viitiis arcnariiis L. 



Hokkaido. — I'luv. Kitaiui: Osliidomciri (III. July 21, 1899, T. K.wvakami) ; Kulsugata (11. oc 

 III. Sept. 2, 1S99. T. K,\\v.iK.\Mi) ; Wakkanai (II. & III. .\ui;. !?, 1S94. K. Miyaise) ; Rebun-Iskand 

 (III. Aug 23. 1894. K. MlVAni-.) ; Rishii-i-Isl.ind (II. S; III. .\u;,'. 20, 1907. M. ^IiURA). — I'rov. Shh-i- 

 beslu: Shiribetsu (II. & III. July 28, 1897. ('.. V AM \Ii\) : Kitamuva (III. Sepl. i. 1905. K. MiVAiiic). 

 — Prov. Iburi: Mororan (III. Aug. 3, 1900. ('.. \ amaov). 



On Elynmis Sibiriens L. 



Hokkaido.— TVov. Shiribc-ähi : Sliikuzusbi (III. 1 let. 7, 1897. K. Mivakf). -Pruv. Kitami: 

 Kisliiri-Iskanil (II. ^i III. ,\ucr. 20, 1907. :\I. Mura). 

 Distrib. kairopc. North .Vmcrica and Japan, 



Remarks. The present genus was found by L.Akkkiikim in 1889 after 

 the name of the eminent mycologist, H. ROSTRUP. 



We ha\'e in Japan throe species of this genus ; viz., Rostrupia Dioscorcw 

 Kom., R. Elymi and A'. Miynbcaua n. sp. 



In 1851, Wi:sTKXl) described for the first time Puccinia Elymi on 

 Elyiniis arcnariiis. When comparing oiu- species with the descriptions of 

 the fungus, I have funul two points of difference. 1. The positions of the 

 uredosori ,ind teleutosori are just reverse to the descriptions. 2. The 

 teleutospores are one septated and are pro\-itled with hyaline pedicels, while 

 in oin- cases they are many septated and furnished with coloretl pedicels. 



The descrijjtion of J^iiccinia triarticulata on Elymiis mollis, collected 

 on the American side of the Behring strait by ClI.VULES Wrigiit, is too 

 brief to identify our jilant with it. But froni the characters there given and 

 the relation of the localities, oiu" fungus ma}- safely be regarded as the same 

 species as the Behring jilant. 



In 1S89, I-A';i;RIII:im miited them under the jn-esent name. Tin; fungus- 



