pa 



In spring liie sclBllrdUa gisirtoinate* the stipbs forking and 

 producing two or even four heads upon the same stalk. Following is 

 Steven's and Hall's diagnosis of the fungxiBs 



"Tlie sclerotia of C. triiasaci is smooth, white to dark hrovai 

 or black, nearly conical, 4 to 5 mm. in diameter at base; sjiieridia, gray 

 to grayish-white, stipes thick, white to purplish v^ite, 1 to 1.5 cm. long; 

 perithecia numerous, elliptical in longitudinal section, with a short 

 beak tcvard the surface of the spheridixun, 390 by 151 to 187(i; asci 

 cylindrical, 145 to 175 by 2 to 3^; spores filiform, I^'Om. long; conidia 

 hyaline, continuous, fusoid to lunulate, 17.4 to 37.7 by E.9 to 8.7p,." 



C wilsoni Cooke (44) on Gl yceria fialtans 



Synonyms: Barya. aurantiaca P and 'Vils. Claviceips 



purpurea Tul. var, Wilsoni V/. Smith. 



Elowright and Wilson (195) described first this species as a 



pa,rasite on ergot tmder the name Barya aurantica . as they could not get 



trivial is 

 infection with the gpores on xiSieat, on rye, and on Poa jogfadcgi^ . They 



fluitans 

 should bAve tried G-. £^aai^iaaa& ^t that time i t v;as considered as an ab-- 



norrrE-lity of C,, 'ourpurea and \7. Smith described it under the name C. nur- 

 p-urea IPul. variety V/ilsoni. He thought that this variety owed its origin 

 to its peculiapenviromient, so different as it is from the environment 

 of \/lieat, rye and olheL cereals, namely, wet and muddy places in stagnant 

 pools and slaz-runr'ing streams. 



The sclesctium of C. wilsoni differs from C. purpurea in being 

 whitish or yellov/ish instead of pale pui-ple in color, and in «,the perithecia 

 being almost free on an elongated club-like growth instead of being immersed 

 in a globular head. Many cf the stipes of this species are hair-like, others 

 are attenuated upwards from a thicker base and the spJiaeridia bear no peri- 

 thecia. The v/hole growth is less firm tlian that of C. purpurea . In some 

 instances the base of the stipe is so thick that the Claviceps superficially 



