110 
d12 
113 
. BRY 
Catalogue of the Flora of Nebraska. 21 
UM Dill. 
159, B. cxzspiticium L. Earth, Weeping Water (Williams). 
. ATRICHUM Beauy. 
160. A. PARALLELUM Mitt Moist banks. Pine Ridge, June (Will- 
161 
jams). 
. A. ANGUSTATUM. Bruch. & Schimp. Long Pine (Bessey). 
. POLYTRICHUM L. 
162 
. P. JUNIPERINUM Willd. On ground. Collected by Mr. Conklin 
at Long Pine (Webber). 
. HYPNUM Dill. 
163 
166. 
. H. FLUVIATILE Swartz. West Nebraska (Webber). 
. H. RADICALE Beauv. On damp decaying log. Hat Creek Basin, 
Sioux Co. Aug. (Webber). 
. H. RUTABULUM L. var. LONGISETUM Brid. Wet dripping banks 
and rocks, Ashland, April (Williams). 
H. SERRULATUM Hedw. On ground. Peru, March; Nebraska 
City, June (Webber). 
PTERIDOPHYTA. 
46. MARSILIACE.EL. 
114. MARSILIA L. 
167 
. M. vestita Hook. & Grev. In ponds in many places in the 
State; Fairmont, Bradshaw, Minden, Geneva. Apparently not 
occurring east of the Blue River. Tae Fairmont specimens col- 
lected in 1890 agree with the variety tenutfolia in the hairiness, 
and shape of the leaflets, but nearly all the specimens collected 
this year (1891) fully agree with the specific characters of M. 
vestita. A few specimens were received which were more hairy, 
and whose leaflets were narrower, but upon investigation these 
were found to be terrestrial forms. In some cases these tenui- 
folia-like forms were connected directly with the larger smooth 
and broad leaved aquatic forms. The season of 1390 was a very 
dry one which probably accounts for the small size of the plants 
and the hairiness and narrow growth of the leaflets (Bessey). 
47. FILICES. 
115. CHEILANTHES Swz. Lip-fern. 
168 
_ C, LANUGINOSA Nutt. Exposed rocks, two miles S. W. of Hack- 
berry Springs, Banner Co. Aug. (Rydberg). Redwillow Co. 
(Bessey.) 
