0\ THE URF.DIXEAE PARASITIC ON THE JAPANESE GRAMINEAE. 229 



Uredos pores, ellipsoidal to globose, densely echinnlate, 16-22 x 15-lS// ; 

 epispore thick (about 2 /<), yellowish or brownish-colored ; germ-pores 4, 

 scattered. 



Telcutospores, clavatc or oblong-clavate, apex acutely conical or rounded, 

 thickened (6-12 /u.), rarely not thickened, slightly or markedly constricted 

 at the septum, chestnut-brown, somewhat lighter colored at apex, 30-58 x 

 10-22/;^; pedicels hyaline or subhyaline, as long as the spores or 80/i in 

 length, persistent. Mesospores occasionally mixed in the sori. 



Hab. On Stipa sibirica Lam. 



Hokkaido.— I'rov. Ishikari : Sapporo (III. Oct. 4, 1X94: III. Sept. 1S95. K. Mivaue; III. Oct. 

 I, 1S96. Y. ToKviircHi).— Prov. Iburi : Cliitosc {III. Oct. 10, igoo. G. Vamada). 

 Distrib. Japan. 



Remarks. There are many species of Puccinia already known to be 

 parasitic on Stipa. They are : — Puccinia graiiiinclla (Speg.) Diet, et Holw., 

 P. grauiiiiclla var. chiloisis Neger., P. graminclla var. Nccsiana Speg., P. 

 xStipß (Opiz.) Arth., P. fiavcscens McAlp., P. Burnctti Griff., P. substerilis 

 Ell. et Ev., and P. luolgcnsis Nawasch. Among them there are no species 

 which arc known to infect Stipa sibirica. The uredospores of this species 

 s very small in size. Puccinia Stipce approaches it in the point of smallness 

 of the uredospore. But they differ from each other in the position of the 

 teleutosori, and in the length of the tcleutospore and its pedicel. The length 

 of teleutospore in ours is longer, while that of pedicel is considerably shorter. 

 From other species, the present fungus differs so evidently that there is no 

 need of stating the differences between them. 



47. Puccinia Zoysise Diet., in Engl., l^ot. Jahrb., 32, 1903, (48) ; Sydow, 

 Monogr. Ured., 1, 1904, (S33) ; Sacc, Syll., 17, 1905, (375). 

 Syn. : Urcdo ZoysitB P. Henn. in Schedule. 

 Hab. On Zoysia pangtus '^\Vi.ii,.\-s^t. japcnica Hack. 



Honshu.— Piov. Rikuchü : Inzan-mura (III. June 29, 1S97. V. Takah.-.shi) ; Morioka (II. & 

 III. Sept. 23, 1905 ; III. Nov. 1907. G. Yamaua ; II. July 28, 1907. M. Miiira).— Prov. Mutsu : Ko- 

 maki (III. Oct. 4, 1S95. K. Sexgoku).— Prov. Musashi: Tokyo (III. Nov. 7, 1S99; II. & III. Aug. 12, 

 1904. S. KusAN'o). — Prov. Echigo : Mt. Sugana (HI. July ir, 1905. T. Kurihara). — Prov. Omi : N.ii- 

 mura (III. April 1 1, 1899. T. NiSHIDA). 



Shikoku. — Prov. Tosa : Köchi (II. June 1901 ; III. Djc. 1907. T. Voshin'aga). 



