MAcouN.] CATALOGUE OF CANADIAN PLANTS. 183 



Gulfof Georgia, B.C. (Dawson.) Greenland. (Fl. Gr.) Upon rocks, 

 rare ; not found in fructification. (Brummond.) 



(689.) H. Vancouveriense, Kindb. 



Thuidium Vancouveriense, Kindb., Bull. Torr. Bot. Club, XVII., 277. 



Plants minute, densely and irregularly pinnate, sparingly radiculose, 

 rarely flagelliferous, dark green, not glossy ; branches short, very 

 slender. Leaves ovate-deltoid, denticulate above the middle, pellucid, 

 faintly papillose ; stem-leaves decurrent, reflexed at the base, acute ; 

 branch-leaves smaller, looser, more concave, oval and obtuse ; cells 

 hexagon a! -oval or rhombic, the ular and marginal quadrate-rhombic ; 

 costa slender, short, scarcely reaching to the middle ; paraphyllia few 

 or none. Perichetial leaves longer acuminate, cells narrower. Capsule 

 small, oblong, sub-erect ; peristome perfect ; teeth yellowish ; cilia 2 ; 

 elongate ; pedicel 1 cm. long. Dioecious. 



On ro<^ks on the upper slopes of Mount Finlayson, at Goldstream ; 

 also on Mount Arrowsmith, Vancouver Island, July ITth, 1887. 

 (Macoun.) 



(690.) H. procurrens, Lesq. & James, Mosses of N. America, 321; 

 Canadian Musci, No. 498. 



British North America. (Drummond fide Mitten.) On damp rocks, 

 Eoger's Pass, Selkirk Mountains, B.C., alt. 4,500 feet ; on rocks near 

 Hector, Eocky Mountains. (Macoun.) 



(691.) H. frullaniopsis, C.M.& Kindb. (n. sp.) 



Stem irregularly divided, brown-red, not radiculose ; branches short, 

 obtuse, when dry incurved ; paraphyllia none. Leaves uniform, dark 

 green, not shining, when dry loosely, or not at all, appressed, sub- 

 squarrose when moist, distant and decurrent, cochleariform, roundish 

 oval, obtusate, incurved at the apex, minutely denticulate above to the 

 middle, very papillose ; upper cells rhombic, the lower oblong, the alar 

 quadrate, the inner basal reddish ; costa short, more or less distinct 

 sometimes stout and simple. Dioecious. Habit of the hepatic, Frullania 



This species differs very much from the allied species principally in 

 the uniform leaves, the absence of paraphyllia and the not cordate 

 leaf-base. 



On trees, at Canaan Forks, Queen's Co., N.B. (J. Moser.) 



(692.) H. aberrans, Een. & Card. Coult. Bpt. Gaz. 



H. homo&opterum, C. M. & Kindb. ; Canadian Musci, No. 484. 

 Abundant on rocks and bark of trees around Eevelstoke, also at 



