230 Illinois State Laboratory of Natural History. 
E. Philadelphicum: Union, April 17, 4136; Champaign, June 
8, 4916. EH. annuum: Johnson, May 12, 4634, May 18, 4666; 
Champaign, June 8, 4893, June 10, 4953; Adams, June 27, 
5805, July 6, 5433. 
®, asterum, Schw. 
Hypophyllous. Spots usually distinct, somewhat swollen, 
yellow or purple; ecidia subcircinate or irregularly crowded, 
short, deeply divided and recurved, soon becoming pulverulent; 
spores subglobose, epispore thin, tuberculate, 12-17 »; sperma- 
gonia rather indistinct, few, mostly on upper side, yellow. 
On Aster sagittifolius: Jackson, April 21, 4212, 4214, 
April 25, 4282; Union, April 24, 4253, April 28, 4382; Pulaski, 
May 1, 4402, May 5, 4501, May 10, 4588; Johnson, May 11, 
4613; McLean, May 20, 4723. Aster sps.: Jackson, April 25, 
4285; Pulaski, May 5, 4510; Johnson, May 12, 4646; McLean, 
July 7, 2428, July 15,5558. On Solidago latifolia: 4248, 4284, 
4782, 4994. On S. cesia: 4249, 4485, 4574, 4506, 4614, 5556. 
S. rigida: 4837 (only spermagonia). SS. altissima: 4250, 
4575, 4587, 4615, 4665, 4688, 4809, 5253. Solidago sps.: 4050, 
4137, 4166, 4175, 4197, 4283, 4808, 4401, 4425, 4426, 4484, 4528, 
4647, 4687, 4733. 
Schweinitz at first separated those on Solidago under the 
name .14. solidaginis, but subsequently united them with the 
Aster forms. His change in the form of the specific name to 
asteratiwi is not followed. 
There seems to be a different A’cidium on Solidago. See 
Ellis’ North American Fungi, No. 1018. 
44. compositarum. 
Under this head are united all the cidia on Composite 
except the two foregoing, whose teleutoforms are doubtful. It 
is impossible to satisfactorily determine them until full life 
histories are worked out. It is even impossible to give in this 
place a description of the species properly known as Afridi 
compositarum, Mart., neither is it deemed wise to try to refer 
anything to the Schweinitzian species, 4. helianthi-mollis and 
AG. tracheliifoliatum. Taking the host plants as guide to a 
considerable extent, the following forms are noted: 
