HiRATSUKA : On Two Specihs ok Co/tos/roiiurn Parasitic on the Jai'Anksr Comi'OSIt.I! 2 23 



a longitudinal slit, 0.7-1.2 mm. long by 0.3-0. 5 mm. broad, 98.O-140 /i high. 



Accidia amphigcnoii.s, mostly hypophyllous, one or two in rows on slightly 

 discoloured spots occupying part of a leaf, crumpent from longitudinal slits, 

 0.5-1.6 mm. long, 0.3-0.6 mm. high; pseudoperidia delicate, colourless ; peridial 

 cells oblong or lanceolate-oblong in face view, somewhat overlapping, easily se- 

 parating, 45.0-61.2 X 25.2-30.6 II, often acute at both ends, inner epi.sporc-thicker, 

 7-2-I0.8 //, closely verrucose; accidiosporcs subglobose to oblong, 23.4-34.2 x 

 18.0-23.4,«; epispore ca. 2.0 // thick, minutely verruco.se. 



Uredosori hypophyllous, minute, 0.25-0.6 mm. across, scattered or circularly 

 arranged or sometimes irregularly grouped, soon pulverulent, orange-yellow ; 

 uredospores variable in shape, generally ellipsoidal or ovate, 21.6-27.0 x 12. 0- 

 18.0 ,«; epispore densely v-errucose, rather thin and hyaline; contents pale yellow. 



Teleutosori hypophyllous, small, round, scattered or gregarious, reddish 

 yellow to yellowish orange; telcutospores cylindrical or prismatic, 60.0-115.0 x 

 iS-O-23.4,«; apex 18.0-25.2/^ thick, hyaline; contents pale orange-yellow. 



Hab. On leaves of Pinus pninüa Regel. {Hai-niatsti). 

 Hokkaido : 



Prov. Ishikari: Mt. Kuro-dake (O, I, July 26, 1926, S. Ito & Naohide 



Hiratsuka). 



On leaves of Saiissurca j'aponica DC. {Hiine-kigotai). 

 Hotishii : 



Prov. Rikuchii: Barajima (Morioka) (III, Sept. 24, 1903, T. Someya; III, 



Sept. II, 1904, K. Sawad.-v); Hakomine (Morioka) (III, Oct. i.igoS, K. 



Sawada). 

 Shikoku : 



Prov. Tosa: Jigoku-tani (II, III, June, 1903, T. Yoshinaga) ; Akinokawa 



(II, III, Oct., 1903, T. Yoshinaga). Prov. lyo: Shintate (II, III, Oct. 20, 



1906, T. Nishida). 



On leaves of Saiissurca Maxiiiimviccii Herd. {Miyaina-asaini). 

 Honshu : 



Prov. Shimotsuke: Nikkö (IF, III, Sept., 1904, S. Kusano). 

 On leaves of Sauss-urca Riederi Herd, {Kita-acaini). 



