110 Phytopathology [Vol. 4 



14. Colletotrichum cereale Manns 



Material under this name distributed by the Ohio Experiment Station 

 has been examined on all the hosts mentioned at the time of original publi- 

 cation, except Hordeum vulgare and Triticum spelta. In addition similar 

 specimens on Arrhenantherum elatinus and Agrostis alba have been examined. 

 All agree with each other in their characters and show no points of differ- 

 ence from the material which has been discussed in the preceding pages. 



All of these forms, which occur either on living or dead grasses, agree in 

 habit and in the size and form of both conidia and setae, the measurements 

 with few exceptions falling within a reasonable range of variation for a 

 species which is so widespread both geographically and in its hosts. It 

 would appear then that we are dealing with a single wide-spread species, 

 of which possibly a large-spored form should be recognized. Were material 

 of other grass-inhabiting species of Vermicularia and Colletotrichum at 

 hand for comparison it is not impossible that some of these would be added 

 to this already long list of names which have been applied to the species in 

 question. 



The synonomy and a recapitulation of the specimens examined, as well 

 as other similar data is appended. The hosts are arranged by tribes. It 

 is interesting to note that eight of the twelve tribes of the family are rep- 

 resented. 



Colletotrichum graminicolum (Cesati) nom. nov. 



Dicladium graminicolum Cesati, in Rabenh., Herb. Viv. Myc. 1677. Flora 



35: 398. 1852. 

 Psilonia apalospora Berk. & Curt., in Ravenel, Fungi Carol. Exs. 3: 83. 



1855. (Hyponym) , 



Vermicularia culmigena Cooke, in Ravenel, Fungi, Amer. Exs. 531. 1881. 



Not V. culmigena Desmaz., Ann. Sci. Nat. Ill, 3: 363. 1845. 

 Steirochaete graminicola Sacc. Syll. Fung. 4: 316. 1886. 

 Vermicularia sanguinea Ellis & Halst., Jour. Myc. 4: 8. 1888. 

 Colletotrichum lineola pachyspora Ellis & Kellerm., in Ellis & Ev. N. Am. 



Fungi 2181. 1889. (Hyponum) 

 Colletotrichum Bromi Jennings, Texas Agr. Expt. Sta. Bui. 9: 25. 1890. 



(Hyponym) 

 Vermicularia Lolii Roun., Rev. Myc. 13: 131. 1891. 

 Colletotrichum sanguineum Ell & Hals.; Ellis & Ev. N. Am. Fungi 3466. 



1896. 

 Vermicularia Hold Sydow, Hedwigia (Beibl.) 38: 137. 1899. 

 Colletotrichum cereale Manns, Selby and Manns, Ohio Agr. Expt. Sta. Bui. 



203-207. pis. 1-10. 1909. 



