20, 1928, Naoiiide IIikatsuka). 



3. Uredinopsis filicina l^ Magn. in Atli Conj^r. But. Internat, d. Geneva 

 (1892), p. 167, lab. IX, fi<,'. 1-13. 1893. 



Hab. On leaves <if J^ryopto'is P/ies^o/>frris C. Chk. (Miymua-warabi) . Mt. 

 Shirilori (Aug. 5, 1928, Naoiiide Mika'iscka, S. .Suimada, M. Terui & K. 

 l'\nrrA); Mt. Kashijv) (Aug. 23, 1928, Naoiude Hikatsuka). 



4. Uredinopsis Struthiopteridis Stökm. in Bot. Xotizcr (1895), p. 81, 1895. 

 Hab. On leaves of Matlcmcia Sinithioptcris (L.) Todaro (Kiisa-sotetsii). 



Nairo (Sept. 6, 1906, T. Mivake). 



5. Pucciniastrum arcticum Tkanzsc;h. in Script. Bot. Hort. Univ. Petro- 

 pol. IV, p. 302, 1895. 



Hab. On leaves oi Rubus arctic iis L. { Oiishima-icliigo}. Shisuka (Aug. 13, 

 1928, Naoiude Hiratsuka). 



Rem'W'ks : This species is new to the mycological flora of Japan. Our .speci- 

 men lias einl)- its uredostage, and its character is as follows :- 



Uredosori h}'p:iphyIlous, scattered or gregarious, minute, round, O.I to 0.25 

 mm. in diameter. )x-lloW or pale j'ellow in colour; pseudoperidia hemispherical, 

 firm, covered b>' the epidermis; peridial cells polygonal, hyaline ; ostiolar cells 

 large, rather thick, sparsely echinulate at the apex ; uredospores ellipsoidal or 

 oblong, 17-26x12-16,«; epispore finely echinulate, colourless. 



6. Pucciniastrum Hydrangeae-petiolaridis Hi rats, in Jour. Facul. Agric. 

 Hokkaido Imp. Univ. XXI, p. 27, 1927. 



Hab. On lea\es oi Hydrangea pctiolirrisSi'Eh. ct Zucc. {Tsiiru-ajisai}. Shi- 

 ritoii (Aug. 10, 1928, Naohide Hiratsuka). 



7. Chrysomyxa Pirolae Rostr. in Bot. Centralbl. V, p. 127, 1881. 

 Eab. On leaves of Pirola minor L. ( 1 'czo-icliiyakuso). Mt. Tosso (July 30, 



1928, Naohide Hiratsuka, S. Shimada, M. Terui & K. Fujita). 



n. Additional Hosts 



1. Calyptospora Goeppertiana Kühn in Hedw. VIII, p. 81, 1869. (Hira- 

 tsuka ill Bot. Mag. Tokyo, XLII, p. 31, 192S). 



