89 



It does not go to: 



Bromas erectus 

 Molinia coeraD.ea 

 Poa annua 



Poa fer tills 



1 

 Triticiun spelta 



^e C. -purpurea from fye attacking the above listed plants 



is considered Ijy StSger as the typical C. TJorTOrea in distinction from other 



C . purpurea^ Yiaiich shall bfe considered in the following pages. 



Ihcoulation ex-periments vvith C. tm-cfurea from 



Festuca arundinacea (273) 



Claviceps from Festuca goes to: 



Anthoxanthum cdoratum 



Arrhenatherum elatius 



Daotylis glojnerata 



Ilelica nutans 



It does not go to: 



Bromas erectus 



Poa alpina 



Anthoxanthum cdoratum is easily infected in this case hi* no 



sclerotia or only rudimentary sclerotia are fDrmed. 



Olhe Claviceps of Festuca arundinacea is typical C_. purpurec .of 



rye as it goes easily to some of the common hosts of the latter species. 



It is interesting to note here that Me Ilea nutans is host 



of tw^o different species of Claviceps, the first being C^, sesleriae . In 



both cases, however, it can be infected only under artificial conditions. 



1 



The cause may be the closed flowers or else its ergot is a different 



specialized race. 



