34 



ILLINOIS BIOLOGICAL MONOGRAPHS 



[502 



41, Meliola cyperi Pat. 



GaiUard, Le Genre Meliola : 70, 1892. 



On Cyperus sp. 



Mayaguez, Oct. 31, '13, 3946. 



On Scleria. 



Manati, Nov. 25, '13, 5252, 5286. 



On Mariscus jamaicensis (Crantz) Britton. 



San Juan, Aug. 15, '15, 9221. 



This species and M. circinans are remarkable in that they have both 

 mycelial and perithecial setae and one is loath to admit that two distinct 

 species showing this very unique character are to be found in Porto 

 Rico, especially upon the same host, and more especially upon the same 

 plant. No. 9221. Still, a study of these two forms bears in the convic- 

 tion that they are actually distinct, one with apiculate spores, the other 

 obtuse, one with cylindrical, narrow, capitate, hyphopodia, the other 

 with thick angular ones, one with thick setae and mycelium, the other 

 thin. 



SECTION E 



Spores, 4-septate, mycelial setae simple. No perithecial appendages. 

 KJEY TO Species op Section E 



Spores acute 

 Spores not acute 

 Setal tips swollen 

 Setal tips not swollen 

 Tips often uncinate 

 Tips not often uncinate 



Capitate hyphopodia opposite 

 Head cell conic 

 Head cell rounded 

 Capitate hyphopodia in part opposite, 

 in part alternate 

 Opposite hyphopodia numerous 

 Head cell very irregular 

 Head cell not very irregular 

 Setae 400/a 

 Setae 600 fi 

 Setae 900/* 



M. psidii No. 42 

 M. clavulata No. 43 

 M. nigra No. 44 



M. praetervisa No. 45 

 M. andirae No, 46 



M. monensis No. 47 



M. thouiniae No. 48 

 M. didymopanicis No. 49 

 M. amomicola No. 50 



