240 Illinois State Laboratory of Natural History. 
negative results, but served to throw doubt upon previous con- 
clusions. In Illinois one species only of Gymnosporangium has 
been collected (from Juniperus Virginiana), and wherever this 
has been observed near apple orchards the latter have been 
strikingly infested with Restelia. Unfortunately the specific 
type of the latter —from anatomical characteristics — cannot 
be confidently given at the time of this writing. It seems to 
be R. lacerata. 
R. lacerata, (Sow.) Fr. 
/Kcidia hypophyllous, sometimes on the stems and young 
fruit, seated on the yellow pulvinate thickening of the leaves, 
slender, cylindrical or somewhat subulate, recurved, densely 
clustered, 5-30 together; peridia yellowish white, rather deli- 
cate, soon splitting and becoming fimbriate, the divisions not 
extending to the base of the peridium; cells of peridium nar- 
row, 20 » broad by 55-72 » long; spores brownish, roundish- 
oblong, surface finely granulated, 19-24 » in diameter. Sper- 
magonia in yellowish spots on the upper surface of the leaves. 
(Farlow, Gymnosporangia of the U.8., p. 30.) 
On leaves of Crategus tomentosa: Lee, Sept. 8, 5715; La- 
Salle, Sept. 13, 1509; Union, Oct. 31, 2141. C. tomentosa, var. 
mollis: Piatt, Aug. 17, 1122; LaSalle, Sept. 13, 1510, Sept. 18, 
1528; JoDaviess, Sept. 18, 5980; Ogle, Sept. 26, 6193. C. to- 
mentosa, var.: Piatt, Aug. 17, 1118; LaSalle, Sept. 12, 1472. 
C. coccinea: Kane, Aug. 30, 1385. 
R. penicillata, (Sow.) Fr. 
Same as R. lacerata, but ecidia smaller and frequently con- 
centrically arranged, peridia splitting to the base, the divisions 
very numerous, revolute, fimbriate, formed of one or more rows 
of cells. (Farlow, Gymnosporangia of the U. S., p. 30.) 
On leaves of Pyrus coronaria: Tazewell, July 22, 2433, 
2436; McLean, Aug. 1, 2435; Champaign, Aug. 18, 1042; Piatt, 
Aug. 16, 1082; McHenry, Aug. 20, 1161, Aug. 27, 1334; Lee, 
Sept. 8, 5714; Stephenson, Sept. 13, 5838; LaSalle, Sept. 14, 
1522; JoDaviess, Sept. 15, 5910; Rock Island, Sept. 23, 1631. 
