120 STATE HORTICULTURAL SOCIETY 



Harpidium, Sulliv. 



1502. H. adancum, Hedw. 

 Rare ; growing in water. 



Hypnum, Dill. 



1503. H. imponens, Hedw. 



Not common; growing on decayed logs and roots of 

 trees in damp woods. 

 1503a. H. curvifolium, Hedw. 



Not rare on decayed logs in damp woods. 

 1503&. H. haldanianum, Grev. 



Not common; growing on sandy hill-sides. 

 Hylocomium, Br. Eur. 



1504. H. schreberi, Willd. 



Not rare on damp, shaded ground. 



1505. H. triquetrum, Linn. 



Common on the ground and on rocks in damp, shady 

 places. 



