Kl'Ii III.oK. 191 



spores. The formation of peritheeia is preceded on tin- >.une 

 stroma by that of eonidia. 1 



Epichloe typhina Tul. dJritain and U.S. America). This 

 may be found on many grasses as a mouldy coating which 

 surrounds the haulms and causes withering of the parts above 

 it. The fungus not iiufrequently attacks such fodder-grasses as 

 /A/r/////s, /%/, and I'/i/i a in prodi run . causing severe loss win-re these 

 crops are much grown. On the white stromata conidiophores an- 

 produced, and from them small, ovate, unicellular eonidia an- 

 al 'jointed. These are followed later by perithecia embedded in 

 the same stromata. The asci, of a somewhat yellowish colour, 

 are long with button-shaped apices and contain eight thread- 

 like spores. 



Ep. Warburgiana, M;e_ni.- is ;xn interesting sjirrirs found <ii ;uT<>\vr'"t 

 in tlif Pliili]'iin.-~. 



Claviceps. 



The sclerotia are black horn-like bodies, and on them the 

 stromata are developed as stalked structures, with spherical 

 heads, in which the flask-shaped peritheria are embedded. Th>- 



i contain eight thread-like spores. 



Claviceps purpurea (Fries 3 ) (Britain and I'.s. America). 

 Tliis fungus becomes most apparent, when in the stage of 

 the well-known " Krgot ' -rain-, bluish-black curved >rlcntial 

 bodies in which the mycelium pcivnnates over wintn. Krgot 

 is found in the ears of our cereals, especially in rye, also in 

 other cultivated and wild ( iramiiieac. The selemtia fall into 

 T li- -round direct, or an- sown out with the seed, and in 

 -prin- or eaily summer produce a large number of s 



h Consisting of a violet stalklet carryinu a reddish-\ 

 head. Tin- ovoid jierithecia are completely buried in the head 

 of the atroma, and contain tin- asci, each with ei-lit thread-like 



spores. Th- sj.on-s. after ejaculation, germinate "n flowen 



of I Irainineae, and the sepiate mycelium devdopes in the outer 



i, <;. !'. Cl'm-riij ('/i/i, Unit, i,, i, I MM, p. _'_'_ i, pr,.|i..~. - a reviaioD 



"I the- .it /.'/)/.///</. ;ui'l otln-r ul N. AIIHTJ. .in jiMiimi".-<'l.>u- 



//'//'"' < ! . ( Ivl it . i 



M -mi-, int. ,-n'it. /!',>. Congress, is'.i_. 



'I'nl' ae, Annal. /. id. natur. :\ - \ . \\. Kulm, Minii> i/m,./. ,* <l. 

 I ''"'. Hall.-, 1st;:; 



