.1004 Wisconsin Academy of Sciences, Arts, and Letters. 
58. Ptilidium pulcherrimum (Web.) Hampe. 
No. 917 Gordon, Wis., Sept. 15, 1908. 
No. 730 Superior, Wis., Sept. 12, 1909. 
No. 10Z0 Albert, Minn., Sept., 1905. 
No. 1021 Lester Park, Duluth, Minn., Oct. 17, 1906. 
No. 682 Carlton, Minn., Sept. 26, 1909. 
No. 166 Solon Springs, Wis., Aug. 26, 1906. 
N. 792 Oneota, Duluth, Minn., Aug. 15, 1909. 
No. 1199 Lutsen, Cook Co., Minn., Sept. 23, 1911. 
Calypogeia Trichomanis is not common. It prefers a gravel 
or sandy clay bank. 
C. Neesiana grows in swamps on wood or sphagnum, or 
woody peat, near wet springy bogs. 
Blepharostoma trichophyllum is usually found on logs mixed 
with other hepatics and mosses, but at the higher altitudes it 
grows on the ground along wood paths and at Black River, Wis., 
it was found in quite pure patches on the hat rocks one half way 
up the falls in the higher beds of the streams, where in high 
water it would, for a while, be submerged. 
Ptilidium pulcherrimum is one of the most common hepatics 
of the District. It grows on old wood, and rocks, and humus 
soil which usually covers the remains of an old log or stump. 
P. ciliare is found at the higher altitudes growing on the 
ground among rocks where it forms little cushions of upright 
growth of an inch or more in thickness. 
Bazzania trilobata is common, and grows spreading out over 
the perpendicular surfaces of rocks, or mossy banks. In the 
swamps it grows in large tufts on the ground with usually a 
substratum of rock. 
Lepidozia reptans is the ubiquitous hepatic of the District 
and grows everywhere except on the trunks of living trees. 
59. Trichocolea tomentella (Ehrh.) Dumort. 
No. 1198 Winneboujou, Brule River, Douglas Co., Wis., in wet 
sphagnum swamp. May 20, 1911. 
60. 8capania apiculata Spruce. 
No. 530 Copper Creek, Wis., Aug. 5, 1909. 
No. 1004 Wentworth, Douglas Co., Wis., Oct. 19. 1910. 
No. 152 Spirit Lake, Duluth, Minn., Oct. 14, 1907. 
