CANADIAN FILTCINE^l 177 



4.— B. SIMPLEX, Hitch., (Hitchcock's Moouwort), Hook., Fl. Bor.-Am., II., 265. Grray, 

 Mau., 6*71. Watt, Cau. Nat., IV, 364. Macoun's Cat., No. 2335. Ball, Ti-ans. N. S. lust. 

 Nat. Sci., IV, 155. Eaton, Ferns of N. A., I, 121. Underwood, Our Nat. Ferns, etc., Tl. 



B. virginkum, var. (?) simplex, Gray, Mau., od. 2nd, p. 602. LaAVSou, Cau. Nat., I., 292. 



This is a smooth, non-evergreen, fleshy, little plant, 1-1 inches high, growing in 

 meadows, damp rich woods, aud on hillsides. Sterile segment petioled, placed below the 

 middle of the plant (usually near its base), ovate in outline, and incised into three to five 

 lobes, which are roundish, obovate, or semi-lunar, with the outer margin entire or 

 obscurely crenulate ; fertile segment long-stalked, usually much overtopping the sterile, 

 and once or twice pinnate ; bud smooth, with the apex of both sterile and fertile segments 

 erect. 



As in B. lanceolatum and B. matricarîœfolium, this species exhibits a regularly graded 

 series of stages of development, and from var. simpUcissimum, Lasch, the simplest form with 

 the sterile segment very small and entire aud the fertile simple, through var. incisim, 

 Milde, the common form and the one above described, and var. sub-compositum, Lasch, more 

 decidedly pinnatifid with the lowest pair of pinnse remote, slightly incised and petioled, 

 the varying stages can be traced to var. compositum, Lasch, (the common western form), 

 which is the perfectly matured plant, and has the sterile segment ternate with stalked, 

 pinnately incised divisions, and the fertile segment fully bipiunate. Rarely the sterile 

 segment is placed above the middle of the plant forming var. fallax, Milde. 



The range of this species in Canada is from Nova Scotia to Lake Superior and the 

 Northwest Territory, though in the United States it extends south-westward to California. 

 Windsor, Hants Co., N. S. — Hmo. Truemauville, Cumberland Co., N. S., var. siinplicissi- 

 mum. — A. J. Trueman. Petitcodiac and Fredericton, N. B. — Bailey. Dalhousie, N. B., var. 

 sub-compositum. — /. Fletcher. Temiscouata, Que., near the sea shore. — Thomas. Quebec, Que. 

 — Brunet. Montreal, Que. — D. R. McCord. Grenville, Argenteuil Co., Que. A small 

 island at the east end of St. Joseph's Island, Georgian Bay, Ont. — J. Bell. Very common 

 in the meadows along the Kaministiquia River, above Fort William, Lake Superior, Ont. 

 — Macoun. Between Cumberland House and Hudson Bay, N. W. Ter. — Drummond. 



5. — B. TEE.NATUM, Swz., (Ternate Grape-Fern), Hook, and Baker, Syn. Fil., 448. Watt, 

 as var. Americanum, Can. Nat., IV, 364. Macoun's Cat., No. 2340. Eaton, Ferns of N. A., I, 

 14*7. Underwood. Our Nat. Ferns, etc., 73. 



B. rutœfolium, A. Braun. 



B. australe, R. Br. 



B. fumarioides, Willd. Pursh, II, 655. 



B. termluin, Swz., var. hmarioides, Milde, Macoun's Cat., No. 2340, var. 1. Underwood, 

 Nat. Ferns, 101. 



B. lumrioides, Swz., Gray, Man., 6Y2. Provancher, Flor. Can., *722. Fowler's, N. B. 

 Cat, No. 11B. Lawson, Can. Nat., I, 292. Ball, Trans. N. S. Inst. Nat. Sci., IV, 156. 



Osmunda ternata, Humb. 



Botri/apus lunarioides, Mx. 



This is a half evergreen, very fleshy, smooth or somewhat hairy plant, commonly 

 growing from 4 to 12 inches high, and found in meadows or on hillsides, and in low, rich 



Sec. IV., ISS-i. 23. 



