Pdrasif/c Fiiin/i (if Illinois. \'u 



teleutospores are divided like a Fnccinia; but because a few 

 sucli spores are found among many of single cells, the species 

 should not be transferred to the latter genus unless there is 

 good reason to sup])ose that the single celled spores are the ab- 

 normal ones. 



In England the secidial forms of the greater proportion of 

 the ih'omyreles are supposed to be known; but in our own flora 

 almost nothing has been demonstrated. In the following those 

 species which have their gecidia on the same host are thus indi- 

 cated in the notes. 



U. hyperici, (Schw.) Curt. 



I. Hypophyllous; spots small, scattered, purplish; lecidia 

 minute, about six (one to nine) in a cluster, semi-immersed; 

 short; spores orange. 



II., III. Hypogenous; spots small, light cinnamon or pur- 

 ple; sori numerous, scattered. Uredoforms and teleutoforms 

 often in the same sorus, the latter succeeding the former. II. 

 Sori small, roundish, long covered by the epidermis, then sur- 

 rounded by its ruptured remains; spores light yellow, globose 

 to elliptical-oblong, minutely echinulate, 16-19 by 19-27 ju. 

 III. Sori becoming larger, angular and conspicuous, ruptured 

 epidermis prominent; spores elliptical or oblong, tapering to 

 the base, strongly thickened at the obtuse or rounded a[)ex; 

 12 by 21-27 a^; pedicel tinted, 1^2 times the length of the 

 spoie. 



Spots on the stem pilose-strigose, purple; sori scattered, acuminate- 

 ovate, bullate, elevated, surrounded by the ruptured epidermis. — Schw. 

 N. Am. Fungi, No. 2843, p. 292. 



On Hypericum niutihnn: Union, Oct. 25, 2008, I., III.; 

 Elodes virginica : Cook, Sept. 6, 1447. II., III.: Sept. 8, 1462, 

 II., III.; LaSalle, Sept. 28, 6218. 



Cooke (Proceedings Portland Soc. Nat. Hist., Vol. 1, part 

 II., p. 184) described, under the name Uromyces triquetral, a 

 species on Hypericiiui, and questioned its identity with the plant 

 described by Schweinitz. Peck (25th Rep. p. 74) adopts the 

 name given by Cooke, but Farlow (Ellis N. A. Fungi, 281) 

 uses, for what seems to be the same, Schweinitz's name. In 



