PLANTS OF NORTH ELBA 1 59 



The very rare Sphagnion Lindbergii Schimp. occurs on the slide of Mt 

 Whiteface. This is its only known station in our state. 



ANDREAEACEAE 



Andreaea petrophila Ehrh. 



Bare rocks specially on mountains. Mt Mclntyre and Indian pass. 

 Mt Jo and chfifs near Scotts ponds. Mrs Britton. It forms cushion- 

 like tufts, which are brown, reddish brown or almost black. Its capsules 

 are small and inconspicuous and when mature, split into four valves. 



BRYACEAE 

 Rhabdoweisia denticulata B. b' S. 

 Wet rocks and cliffs. Mt Jo. Mrs Britton. Mt Pitchoff and Rocky 



falls. 



Rhabdoweisia fugax B. &= S. 



Cliffs of Mt Jo. Rare. In small quantity but usually fertile. Mrs 



Britton. 



Cynodontium virens Wahlenbergii B. cir* S. 



Oncophorus Wahlenbergii Brid. 



Decaying wood and prostrate trunks of trees. Moose island, Mt Col- 

 burn, Indian pass and Avalanche trails. Mrs Britton. Wood farm 

 swamp and Scotts ponds. May and June. The dry capsule is shorter, 

 more curved and less constricted under the mouth than in the typical 

 form of C. virens. It is now generally considered a distinct species. 



Trematodon ambiguus {Ifedw.) Jlornsch. 



Bare ground and roadsides. Near Lake Placid. Miss N. L. Marsh- 

 all. Near Notch house. July to September. A pretty moss easily recog- 

 nized by the long narrow neck of the capsule. Not common in North 

 Elba but occurring throughout the Adirondack region. 



Dicranella heteromalla {Bill.) Schimp. 



Ground, banks by roadsides and about roots of trees. Common. Mrs 

 Britton remarks that the form growing on roots of trees along trails in 

 the woods is smaller than the usual form, has the capsules less symmetric 

 and the pedicels curved though these become straight in drying. 



D. heteromalla orthocarpa C. Mull. 

 ' Mclntyre trail near the timber line. 



