New Japanese Fungi 



169 



The author suggests four important factors in preventing the 

 disease: (i) Selection of a resistant variety; (2) necessity of 

 avoiding the use of too much nitrogen fertilizers; (3) not allow- 

 ing too much water on the field ; and finally (4) application of 

 stable manure instead of mulching the field. 



Marsonia Carthami T. Fukui sp. nov. in Nogaku Kwaiho 

 (Journ. of the Scientific Agricultural Society) No. 166, pp. 

 381-383, fig. 6. T. 5, vi. June, 1916. (Japanese.) 



Spots ochre-brown, few, 1-10 rarely more, orbicular, elliptical 

 or irregular, never angular, varying in size, the largest 10 X 6 

 mm., sometimes confluent, forming still larger spots, margin 

 definite, raised, punctate with acervuli ; acervuli subepidermal, 

 scattered, brownish; conidiophores hyaline or pale yellowish, 

 20 X 3 ^ ; conidia hyaline or pale yellowish-brown, elliptic, ends 

 acute especially the base, giving a fusiform appearance, contents 

 granular at maturity, 1 -septate, constricted at the septum, 10- 

 25 X 4-6 ft, average 20 X 5 



On living leaves of young plants of Carthamus tinctorius L. 

 (Compositae) called in Japan Benibana (Hung-hua, in Chinese) 

 found at the experiment farm of Shidzuoka-ken Agr. Experiment 

 Station, Abegun, Shidzuoka-ken, Japan: Sept. (?), 1916. 



Mycosphaerella hordicola Hara sp. nov., ex Tsuruda, Shoitsu 

 in Byochu-gai Zasshi (Journ. of Plant Protection) 3 7 : 532. 

 July, 1916. (Japanese.) 



Perithecia small, black, globular, 297X212^ or 255 X 212 jx 

 (figures doubtful) ; asci irregularly cylindrical or sometimes 

 conical, octosporous ; spores hyaline, fusiform, blunt at both ends, 

 7-15 X 2.7-3.5 /x, two-celled, contents granular. On the blades 

 and culms of wheat, barley, and naked barley, 



Differs from Sphaerella bacicola B. Frank which grows on rye 

 and has perithecia with rosy interior and constricted elliptical 

 spores which measure 10-12 /x. This sp. is also distinct from 

 Mycosphaerella Hordei Karst which has straight, elliptical or 

 fusiform constricted spores, 18-24 X 6-8 /x. 



Distribution : Shidzuoka-ken, Sunto-gun, Kanaoka-mura, May 

 24, 1916, S. Tsuruda; Agehara-mura, May 3, 1916, S. Tsuruda; 

 Ukishima-mura, May 11, 1913, S. Tsuruda; Fuji-gun, Obuchi- 

 mura, June 22, 191 5, Takimura Nokwai (Agr. Soc. of Taki- 



