1897] Macoun — Cryptogamic Flora of Ottawa. 139 



years since. It is apparently very rare as its occurrence in America was 

 doubted when Lesq. and James' work on the mosses appeared in 1884. 

 On rocks at the corner of Rockcliffe Park close to Governor's 

 Bay. October 12th, 1884. 



59. O. cupulatum, Hoffm. 



On limestone rocks along the cliffs facing the Ottawa near 

 Governor's Bay, Rockcliffe Park. April i6th, 1891, 



6o- O. strangulatum, Beauv. 



On trunks and fences around Ottawa • woods at Ironsides, Chelsea 

 and near Leamy's Lake, Que. ; also in McKay's Woods and in Beech- 

 wood Cemetery ; collected on trees in Rockcliffe Park, April 22nd, 1896. 



61. O. psilothecium, C. M. and Kindb. 



Plants small, i cm. long or less, green. Leaves short oblong- 

 lanceolate, obtusate or short-acuminate, sub-obtuse, revolute at the 

 borders to the greater part, faintly papillose ; costa percurrent, Capsule 

 small, immersed, oblong, not striate before sporosis, very short-necked; 

 vaginula naked ; calyptra slightly hairy at the blackish apex, finally 

 glabrous and light-brown, narrow, covering the whole capsule ; lid ros- 

 tellate. Male flowers on distinct branches. 



This species Ijas the habit of O. fallax, Schimp. {O. Schvnperi, 

 Hamm.) We have not been able to examine the peristome and the 

 stoma'^^a of the capsule, because only one capsule (in our specimen) is 

 nearly ripe, the others are quite unripe. 



On old fences in Rockcliffe Park ; on cedar rails along the Rich- 

 mond Road, near Hintonburg ; collected on old fences at Carleton 

 Place, Aug. 26th, 1889. 



62. O. obtusifolium, Schrad. 



On old cedar rails and trunks of balsam poplar ; on rails in 

 McKay's Bush ; on poplar trees along the Gatineau River, near 

 Leamy's Lake, Hull, Que. ; collected on poplar trees near Hinton- 

 burg, April iSth 1896, 



XX. ENCALYPTA, Schreb. 



63. E. vulgaris, Hedw. 



On limestone ledges on the south side of the outlet of Leamy's 

 Lake, near the Hull Cemetery, Que., Oct. nth, 1890. 



64. E. Macounii, Austin. 



In crevices of limestone rocks around the whole cliff facing the 

 Ottawa in Rockcliffe Park, April 22nd, 1896 ; crevices of rocks along 

 the Gatineau at Kirk's Ferry, Que. Fruiting. 



