Parasitic Fungi of Illinois. 221 
April 19, 4176, April 28, 4367; Pulaski, May 1, 4403, May 6, 
4531, May 9, 4578; Johnson, May 13, 4670; McLean, May 23. 
4749, May 26, 4791; Champaign, June 8, 408; LaSalle, June 
16, 5208; Adams, July 3, 5387. 
Schweinitz (Syn. Car. 458) calls this .Mcidiwm nitens, and 
afterwards (Syn. N. A. Fungi) Cwoma (sub-genns .Keidinm) 
luminatum, The last name has been most often used, but 
without proper authority. 
This is the well known orange rust of the blackberry, and 
more rarely of the black-cap raspberry, occurring for the most 
part in May and June. It is unquestionably a first form or 
undeveloped state of some teleutosporic species, and this has 
been thought to be a Phragmidinum. Some recent observation. 
however, tends to show that it belongs to Puccinia Peckiana, 
Howe, which is found on the same host-plants, and matures in 
September. 
AHCIDIUM, PrErsvon. 
Spores one-celled, in chains or vertical rows, without pedi- 
cels; sorus inclosed in a short, beaker-like pseudoperidium. 
which protrudes through the ruptured epidermis of the host, and 
opens regularly at the vertex, the border soon becoming more 
or less toothed or lobed, and usually recurved; with sperma- 
gonia. 
This was supposed to be a true genus of automatous species, 
but it is now believed that all the supposed species belong to 
Uronyces and Puccnia, and constitute what is known as their 
first or vcidial stage in the alternations of development. Be- 
fore, however, anything like exact knowledge as to genetic re- 
lations van be ascertained, carefully made artificial cultures 
must be made by competent investigators. Where there is 
now good reason for accepting the demonstrations as satisfac- 
torily made, the forms have been included in their proper 
places with the teleutospores; otherwise they follow here under 
the designation of species. 
AS. ranunculacearum, DC. 
Hypophyllous. Spots distinct, yellowish, mostly small; 
ecidia irregularly and densely clustered, short, erect, or at 
