PLANTS OF NORTH ELBA I 63 



Racomitrium microcarpum Brid. 

 Rocks. Mt Jo and Scotts ponds. Mrs Britton. Mt Mclntyre and 



Indian pass. 



Racomitrium fasciculare Brid. 



Rocks. Mt Jo and summit of Mt Mclntyre. Mrs Britton. Plentiful 

 in Indian pass. 



Hedwigia ciliata Ehrh. 



Rocks. Common. June. 



H. ciliata viridis Schitnp. 



Rocks. Newman farm. A very slender form occurs on: rocks in 



Indian pass. 



Zygodon viridissimus {Dicks.) Brown 



On an old sugar maple near Adirondack lodge, growing with Bryuni 

 roseicni and other mosses!^ Very rare. Sterile. This species has been 

 collected only three times in North America, and has not yet been found 

 in fruit. It has probably been often overlooked on account of its small 

 size and its habit of growing under and among other mosses. It rarely 

 fruits in Europe. It bears some resemblance to species of Barbula. Its 

 bright green tufts emerge from cracks in the bark, beneath which the 

 main stems seem to creep. Mrs Britton. 



Orthotrichum speciosum Nees. 

 Trunks of trees. Placid club tract on Popidus grandidentata and Salix 

 Bebbiana Mrs Britton. Brewster farm on Crataegus punctata and on 

 aspen near Freemans Home. 



Orthotrichum Ohioense S. b' L. 



Trunks and branches of trees. Placid club tract, where it is associated 

 with the preceding species, from which it may be distinguished by its 

 smaller size, by its thin capsule partly buried in the leaves and striate 

 when dry and by its less hairy calyptra. Mrs Britton. On beech and 

 birch near Freemans Home and on striped maple. Wood farm. 



Orthotrichum Braunii B. fir' S. 



O. strangulatum SulL, not Bv. 



Trunks of trees. Common. Often associated with the preceding 

 species, from which it may be distinguished by its thicker, darker colored 

 capsule strongly constricted under the mouth. 



