NEW JAPANESE FUNGI 



NOTES AND TRANSLATIONS— IX 



Tyozaburo Tanaka 



Helminthosporium papaveri K. Sawada sp. nov. in Taiwan 

 Hakubu.tsu Gakkwai Kwaiho (Journ. of Formosan Nat. Hist. 

 Soc.) No. 31 : 129, T. 6, xii, Dec, 1917, and in Bull. No. 128, 

 Agric. Exp. Stat., Gov'nt of Formosa, " Taiwan ni okeru 

 Keshi Byogai Chosa " (Diseases of poppy in Formosa) by K. 

 Sawada, pp. 20-22, T. 7, vi, June, 1918. (Japanese.) 



Conidiophores fasciculate or solitary, copiously branched, 

 cylindric, many septate, yellowish-brown, 86-130 x 6- 7 /x, ter- 

 minating with a single conidium, after its abstriction a second 

 conidium is formed ; conidia cylindric, both ends blunt, 3-10 

 septate, constricted, yellowish-brown, 22-112x7-11 /x. 



Parasitic on leaves, stems, peduncles and fruits of Papaver som- 

 niferum. 



On leaves, spots are large, irregular, brown and pierced at the 

 center when fully matured. On stems, the lesions causing rot are 

 brown, and, when they are formed at the lower part, cause wilt- 

 ing of the whole plant; the decay soon appears at the petiole of 

 leaves turning them to a dirty yellowish-brown color. The stem 

 tissues, including cortex, are entirely disorganized and dead ; at 

 a certain stage a gray mould is found on the decayed surface. 

 The appearance on the peduncles is similar to that on the stems. 

 When the fruits are attacked the spots are orbicular, yellowish- 

 brown or brown bordered with a blackish-brown periphery, and 

 later develop gray mould from the center, which occasionally 

 appears in concentric zones. No sound seed is produced from 

 the diseased fruits. It is one of the most dangerous diseases of 

 cultivated poppies in Formosa. 



Type localities: Taihoku-cho Taihoku, Apr. 25, 1917, Funabiki; 

 Taihoku-cho, Chonaihosho, Apr. 21, 191 7, K. Sawada. 



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