GLOEOSPORIUM 439 



Spores oblong, 2-3-guttulate, 15-20X4-5 p- Sporophores 

 terete, simple, fasciculate, springing from stout mycelium. 

 At present only recorded from Italy. 



Briozi, U., Zeit. Pflanzenkr., 6, p. 65 (1896). 



Clover stem rot. Kirchner describes a stem disease of 

 clover caused by Gloeosporium caulivorum (Kirch). The 

 disease appears under the form of long, dark brown streaks 

 or patches on the stem, these become more or less sunken 

 and surrounded by a blackish border, and occur at intervals 

 along the stem ; after some time they wilt and the stem falls 

 over. 



The pustules are minute. Conidia continuous, hyaline, 

 curved and more or less pointed at the ends, 12-22 x 3-5 /*. 



Kirchner, O., Zeit. Pflanzenkr,, 12, p. 10 (1902). 



Cucumber fruit rot (Gloeosporium lagenarium, Pers.) 

 often attacks the leaves, stem, and more especially the tip of 

 the young fruit, which soon becomes soft and rotten. 



The pustules are pinkish in colour, and are often disposed 

 in irregular concentric rings. Conidia ovate-oblong, often 

 more or less oblique, hyaline, continuous, i6-i8x 5-6 /*. 



Fusarium reticulatum, having 3-septate, curved conidia 

 about 40 /A long, is constantly met with accompanying the 

 Gloeosporium, and some affinity between the two is suspected, 

 but has not been proved. 



This is a destructive disease, and is responsible for the 

 death of many cucumbers in the young condition, by causing 

 a soft rot at the tip. All diseased fruit should be removed, 

 and the plant sprayed with dilute Bordeaux mixture at 

 intervals. 



Gourd-scab (Gloeosporium orbiculare, Berk. =G. laeticolor, 

 Berk.) often forms circular spots on nearly ripe vegetable 

 marrows, melons, gourds, and allied fruits. 



The conidia escape in viscid tendrils, oblong, ends 

 rounded, hyaline or with a pink tinge, averaging 14 X 3-5 p. 



Cabbage leaf spot (Gloeosporium concentricum, Grev.) 

 forms roundish, bleached spots on cabbage leaves ; in the 

 early stage these spots consist of numerous, minute, white 

 dots arranged more or less concentrically. At a later stage 

 the spots often run into each other, and form large, dead 



