132 Cheney and True—Flora of Madison and Vicinity. 
869. H. uncinatum , Hedw. 
Of this plant only one small tuft was collected. 
This was found on a decaying log beside the road 
six miles west of Madison. Rare. 
870. II. filicinum , Linn. 
On the ground in a bog at Merrill Springs. Grow¬ 
ing with Philonotis calcarea. Rare. 
Ctenium. 
871. H. crista-castrenis , Linn. 
On the ground in woods at the margins of swamps. 
Widely distributed. Rare in fruit. 
Hypnum. 
872. 
873. 
874. 
875. 
876. 
H. reptile , Michx. 
Forming wide, close-adhering patches on granitic 
rocks. Everywhere. 
H. imponens , Hedw. 
Collected on a log near the road from Stoughton 
to Oregon, five miles east of the former place. 
Rare. 
H. cupressiforme , var. 
A few small specimens of this moss were found at 
the Wisconsin State Fish Hatchery. Not com¬ 
mon. 
II. Haldanidnum , Grev. 
Woods near lake shore one mile east of the vil¬ 
lage of Pheasant Branch. Growing on a log. 
Not common. 
H. arcuatum , Lindb. 
This is one of our commonest mosses. It forms 
wide mats in marshy meadows and in low, wet 
woods. Not common in fruiting condition. 
Calliergon. 
877. H. cuspidatum , Linn. 
In marsh west of Lake Wingra. Rare. 
878. H. Schreheri , Willd. 
Growing with H. crista-castrensis. Less common. 
Rare in fruit. 
Hylocomium. 
