Pantsific Fungi of Illinois. 201 



This species is certainly closely related to Fiiccinia ruhi.ijo- 

 vera. Indeed, it is scarcely possible to separate them, except 

 by the terminal projections of the teleutospores in P. coyonafd. 

 and these are present in varying degrees, sometimes (as in No. 

 28H4 ) nearly wanting. 



P. eraaculata, Schw. 



II., III. Mostly epigenous. sometimes amphigenons. Sori 

 small, rather prominent, mostly very numerous, irregularly scat- 

 tered or crowded, rarely confluent on the leaves, but on the 

 sheaths forming loug, irregular lines, black, rather early eruni- 

 ])ent but long surrounded by the ruptured epidermis; uredo- 

 s{)ores subglobose, epispore rather thin, sharply but minutely 

 echinulate. 15-24 /a; teleutospores elliptical or broadly clavate, 

 slightly constricted, vertex strongly thickened and obtusely 

 pointed or rounded, mirrowed below, smooth, not dee]dy col- 

 ored, 15-21 by 8()-4<S ^: ]»edicel once to once and a half as long- 

 as the s|)ore^ tinted. 



Entirely without spots ; iit first sori entirely covered or sparingly 

 erumpent, then often confluent, minute, abbreviated, narrow, parallel, 

 often acuminate at both ends. Spores black, rather small, when im- 

 mersed in water fuscescent. Everywhere on species of Panicum, espe- 

 cially P. pubrxccnx in fields. — Schweinitz, N. Am. Fung., No. 2912, p. 295. 



On Tricuspis seslerioides : Union, Nov. 4, 2274. Erar/j-osfis 

 pectinacea: Union, Oct. 21, 1903. Panicum capillan': LaSalle, 

 Hept. 14, 1537, 11., Sept. 29, 6238; Rock Island, Sept. 21, 1609, 

 Sept. 23, 1628, Sept. 26, 1661, Sept. 27, 1679; JoDaviess, Sept. 

 19, 5993; Stephenson, Sept. 21, 6059; Ogle, Sept. 23, 6142, II., 

 III.; Fulton, Oct. 1, 17()8. P. rirrjatum: Lee, Sept. 9, 5760; 

 Ogle, Sept. 22, 6109; Rock Island, Sept. 27, 1695. 



On Panicum vir</afinn the teleutospores have in each seg- 

 ment a small circular nuclear spot, and the pedicels are nearly 

 colorless. On Tricaspis seslerioujes C^o. 2214:) and Eragrostis 

 prcfinacea (No. 1903) the sori are mostly hypophyllous, and the 

 teleutospores are often lighter colored, with hyaline pedicels. 



