154 MAINE STATE COLLEGE 



Tomato Anthracxose. 

 Colletotrichum phomoides , Sacc. 

 This fungus appeared last fall in the station garden upon ripen- 

 ing and fully ripe tomatoes and did considerable damage. Toma- 

 toes that were apparently sound developed the disease rapidly after 

 they were gathered. This fungus is capable of doing much damage 

 to the ripening crop and the ripe fruit can not be kept any time or 

 marketed. We understand from Professor Munson that the disease 

 has done damage elsewhere in the State. Professor Chester 

 described this fungus as G. lycopersici, n. s p. in the Fourth Report 

 of the Delaware Station, but in the Fifth Report of the same 

 station, p. 80, 1892, he refers the fungns back to G. phomoides. 

 Sacc. Our species is the same as the one considered by Professor 

 Chester, as we sent specimens to him for comparison. He has 

 kindly loaned us the fine cuts which are used to illustrate this article. 

 Professor Chester is of the opinion that the characters used by 

 botanists to separate the genera Colletotrichum and Glozsporium, 

 viz. : the presence or absence of seta? in the fruiting tufts, is 

 evanescent. If this should be established the genus Colletotrichum 

 would be merged into Gloozsporium . The investigations of Miss 

 Southworth, Professor Halsted and Professor Chester indicate that 

 several forms of Glozsporium separated as species on account of 

 living on different host plants will have to be merged, or that there 

 is a species of Glozsporium one and the 

 same, capable of a wide range of para- 

 sitism and of producing Anthracnose on 

 a variety of hosts. It looks as though 

 careful laboratory methods would make 

 havoc with the present nomenclature of 

 fungi, by merging stages of the life history 

 of forms and uniting species that have been 

 fig. -2. Tomato. Aftected byseparated on the principle, that each host 



Anthracnose. Colletotrichum , ,. ., mi „ „i»«„„ 



phomoides, Sacc. harbors its peculiar parasites. I he above 



is only of importance to mycologists. The characters and treat- 

 ment are of more interest to the grower of tomatoes. 



