164 NEW YORK STATE MUSEUM 



Orthotrichum obtusifolium Schrad; 

 Trunks of poplar or A merican aspen, Populus grandidentata and P. tre- 

 muloides. Placid club tract.. Mrs Britton. Near Mountain View house 

 and on Buck island. Easily known by its blunt leaves. 



Ulota Hutchinsiae Sckimp. 



Orthotrichum Americanum Bv. 



Rocks. Lake Placid. Miss Marshall. Brewster farm and Indian 

 pass. June and July. 



Ulota Ludwigii Brid. 

 Trunks and branches of trees. Common. June and July. 



Ulota crispa Brid. 

 Trunks and branches of trees. Common. July. 



Ulota crisp ul a Brid. 

 Habitat and general appearance the same as in the preceding species. 

 In both, the leaves are much crisped when dry. In this species the 

 capsule is shorter than in U. crispa. 



Tetraphis pellucida Hedw. 

 Georgia pellucida Rabenh. 

 Old stumps and much decayed wood. Common. 



Schistostega osmundacea W. cV M. 



Dark damp places under overhanging rocks and upturned roots of 

 trees. Two brook pond, Tom Peck pond and Mud pond; also in 

 Indian pass under large boulders. Seldom fruiting. Called luminous 

 moss, in reference to the brilliancy of the protonema. Mrs Britton. 

 Fertile specimens were collected in June on Indian pass trail about a 

 mile north of the entrance to the pass. 



Splachnum rubrum L. 



Growing among peat moss in a marsh near Scotts ponds. June. 

 Mrs Britton remarks that the species of Splachnum, Tetraplodon and 

 allied genera are among the rarest and most interesting of our mosses, 

 because they grow only on decaying animal matter. T. mnioides has been 

 collected on the summit of Mt Marcy, growing on the bones of some small 

 rodent, and Splachnum rubrum has been collected in only one other 

 station in the United States. 



