go 



of eight centimeters and the spheridia a diaireter of one to five millimeters. 

 The perithecia have a length of about 3.00 millimeters and one-fourth or 

 more of each perithecium stands free above the spheridia. The asei ate 

 long and cylindrical, 150 to 180 microns long and three microns thi&k oh 

 the apex with a small hyaline cap, The ascospores are threM-like, hany 

 septate, and .5 microns in width, swelling in water to three to four 

 microns. Short side branches coming out from the germinating spore soon 

 develop numerous, oval, hyaline conidia, 12{i, long and 5[x wide. The hyphae 

 bearing the conidia are markedly thimiej? than normal vegetative hyphae, ■vdiich 

 have short, thick cross walls. The conidia are formed in great numbers, 

 and when set free, germinate at once and develop aerial growth and new 

 conidia. According to MSlle r C . balansioides is a mid-form between 

 B53dBiisia and Claviceps. 



Clavice-ps ? carc ina R-i-iffiths and Morrig 

 on Ga r ex nebraskensis . Andre-^s, Ore. 

 Mycelium of the fungus extending throtighout the entire sub- 

 stance of the parenchymatous tissue of the center of the culm of the host 

 and condenses in one to four places into black, longitudinally striated 

 sclerotia, 1.5 to 5 mm. by 1 to 5 cm,, the interloi .Df which is vvhite, of 

 uniform density and made up of loosely interwoven, colorless, thick-walled 

 and sparingly septated hyphae. Eaithful but unsuccessful attempts have 

 been made to cultivate the sclerotia of this species, and the placing of 

 the species in the genus Claviceps is, according to Griffiths, a wild 



guess. 



On the TAtoole, the species is very inconspicuous, but vAien once seen 

 it can be readily detected afterward. The most noticeable effect of the 

 fungus is the rather early death of the culm vJiile the lower leaves are 



