[Ke; Tinted iron, Mvcologia, \'o . XIV., No. 5, September. 1922.] 



NEW JAPANESE FUNGI 

 NOTES AND TRANSLATIONS— XII 



Tyozaburo Tanaka 



Gymnosporangium asiaticum Miyabe in Shokubutsugaku Zasshi 

 (Bot. Mag.) Tokyo, i/^**-: 34. M. 36, ii, Feb., 1903 (nomen 

 nudum) ; in Ideta's Nippon Shokubutsu Byorigaku (Handb. PI. 

 Diseases in Japan) ed. 3, Tokyo, Shokwabo, M. 36, iv, Apr., 

 1903, 6. 214-217, fig. 50, 51 (nomen subnudum) ; Yamada in 

 Omori, J. & Yamada, G. Shokubutsu Byorigaku (Plant Pathol- 

 ogy) Tokyo, Hakubunkwan, M. 37, ix, Sept., 1904, p. 303-306. 

 (Japanese.) 



Description by G. Yamada : 



0. Pycnia epiphyllous on spots, first small, punctiform and 

 orange-yellow, gregarious, few in number; pycnospores small, 

 fusoid. 



1. Aecia hypophyllous, on thickened, well-developed, brown 

 spots having a beautiful, flavo-rubescent margin, very slender, 3-6 

 mm. high, cinereous ; peridium tubular, not recurved in dehiscence, 

 irregularly torn at the end, liberating reddish-brown aeciospores ; 

 aeciospores globose or sub-angular, minutely-verrucose, the pores 

 several. 



On Pyriis sinensis (Japanese sand-pear) and Cydonia rulgaris. 



III. Telia foliicolous, forming reddish-brown, gelatinous masses, 

 deep-fuscous when desiccated, pulvinate with sticky, orange-yellow 

 teliospores ; teliospores long-pediceled, orange-yellow, those pro- 

 duced on the outer part of the telium broad and short, thick-walled 

 and deep colored, those formed in the inner part of the telium 

 slender, thin-v^^alled and light colored, readily germinating from 

 the places near the septum ; promycelia 1-2, rarely produced from 

 the apex of the teliospore ; sporidia 2-3 on a promycelium. 



On Jiinipenis chinensis and /. chincnsis var. procumbens. 



The sporidia of III readily produce Roestelia (R. koreacnsis P. 

 Henn.) on Japanese pear leaves, according to the inoculation test 

 conducted by Miyabe. 



282 



