MACOUN.] CATALOGUE OF CANADIAN PLANTS. 65 



(247.) C. atricha, C. M. & Kindb. (n. sp.) 



Differs considerably from Grimmia conferta in the tufts densely 

 cohering, the leaves being small and when dry appressed, muticous, 

 short, ordinarily ovate-oblong, not recurved at the margins, the _cells 

 not incrassate, the perichetial leaves very much larger and broader than 

 the other ones ; capsule more wide-mouthed, teeth of the peristome 

 orange only below, yellow or hyaline above, entire, not rimose nor 

 papillose, lid longer rostrate. 



This small moss grows in large, but only 1 cm. high, dry, blackish or 

 when moist, green tufts. 



On the sloping face of broken rocks at the 'summit of the mountains 

 back of Sproat, Columbia Eiver, B.C., alt. 4,000 feet, June 24th, 1890. 

 (Macoun.) 



(248.) G. pachyneurula, C. M. & Kindb. (n. sp.) 



Tufts small, green. Leaves small, when dry appressed, not twisted, 

 when moist, speading, short ovate-lanceolate, recurved on both sides, 

 hairless and obtuse ; cells uniform subquadrate, not erose, the alar 

 scarcely distinct ; costa percurrent, thick, and smooth at the back. 



This species is found only in a barren state, but appears to belong to 

 the section Schistidium. 



On rocks, near the Whirlpool on the west side of the Columbia, at 

 Eevelstoke, B.C. May 7th, 1890. (Macoun.) 



(B.) Eugrimmia. 



(249.) G. a nod on, Bruch & Schimp. ; Lesq. & James, Mosses of 

 N. America, 138 ; Canadian Musci, No. 89. 



On dry rocks at Morley, foot-hills of Rocky Mountains, and "at Lytton, 

 B.C. (Macoun.} 



(250.) G. plagiopodia, Hedw. ; Lesq. & James, Mosses of N. 

 America, 138. 



On dry rocks. Cypress Hills, Alberta ; on sandstone rocks along 

 Peace River, 50 miles below Dunvegan ; on rocks, Black water River, 

 B.C. (Macoun.} 



Yar. pilifera, Lesq. & James, Mosses of N. America, 138; Cana- 

 dian Musci, No. 511. 



On dry rocks along Peterson's Creek, in the flats near the railway 

 station at Kamloops, B.C., 1890. (Macoun.') 



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