150 
ASPLENIUM, L. Spleenwort. Shield-Fern. 
1300. A. ebeneum, Ait. 
In sandy soil; very rare. (B.) 
Woods near Berry Lake, Ind. Miller’s, Ind., Bastin . 
1301. A. thelypteFOides, Michx. Silvery Spleenwort. 
Specimens have been exhibited from the northern portion of Cook 
County, near Glencoe. Berry Lake, Ind. ; rare. July. (B.) 
1302. A. filix-fcemina, Bernh. Lady-Fern. 
Moist rich woods; infrequent or rare, except locally. July. 
Niles. Near Stony Island. Maywood. Glencoe, Babcock! River- 
side, Herman Jaeger. 
PHEGOPTERIS, Fee. 
1303. p. hexagonoptera, Fee. 
Rich open woods and shaded ravines, chiefly in the northern portion 
of Cook County; infrequent. July — August 10th. 
ASPIDXUM, Swartz. 
1304. A. thelypteris, Swartz. Marsh Shield-Fern. 
Low grounds and marshes ; common throughout the southern por- 
tion of our district, less frequent elsewhere. August. 
1305. A. spinulosum, Swartz, var. intermedium, Eaton. 
In damp rich woods, both north and south; common. July. 
1306. A. acrostichoides, Swartz. Christmas Fern. 
Woods and banks of ravines, north of Glencoe. Three or four 
specimens were found on a sand hill near Miller’s, Ind., in 
1886-’87. Not found in 1888. Rare. July. (B.) 
CYSTOPTERJS, Bernh. 
/ 1307. C. fragllis, Bernh. Bottle Cystopteris. Bladder-Fern. 
Shaded banks and rich woods; infrequent west and north. July. 
7 • . ^ J 
ONQCLEA, L. 
1308. 0. sensibiliS, L. Sensitive Fern. 
Moist or wet places, especially in marsh grass; common or abundant. 
June 15th — July 25th. 
OSMTJNDA, L. 
1309. 0. regalis, L. Flowering Fern. Royal Fern. 
Moist rich woods and swamps; frequent. May 15th — July. 
1310. 0. claytoniana, L. Clayton’s Flowering Fern. 
Wet woods, shaded banks and swamps; frequent east. May 15th — 
June 15th. 
