CANADIAN" RANUNCULACE.Tî. 25 



p. SU. Pursh., p. 388. Persoou, Syuops. PI, II, p. 100. Hook., Fl. Bor.-Am., I., p. 3, tab. 2 

 Torr. & Gray, Fl. N. A., I., p. 38, in part. Gray, PL Feucll., p. 5. Mauual, ed. 5, p. 39. Chap- 

 mau, Fl. S. U. S., p. 5. PI Botirgeaii, 254. Lawson, Raiinnc. Canad., p. 31. Watson, Bibl. 

 Index, I., p. 25. Macoun, Cat, No. 22. 



T. coryndlim. DC. Syst. Nat., I., p. 1*72. Eichardson, Frankl. Jour., 12, in part, (see 

 Hook. Fl. B. A.) 



T. mnfcrlum. Mœuch. ("Watson, Index.) 



T. crenutum. Desf. Cat. Hort. Par., ed. 2, p. 12(i. (DC.) 



T. discolor. Willd. 



T. rugosum. Pursh, Fl., p. 388. DC. Syst. Nat., I., p. 185. 



T. Caroiinianum. DC. Syst. Nat., I., p. 1*74. (Watson.) 



T. leucostemon. C. Koch and Bouché, in App. Index Semiu. Hort. Berol., 1855. Wal- 

 pers. Annales Botauices Syst., IV., p. 12. C. Koch and Bouclié's description does not show 

 this plant (received at the Berlin Garden from North America) to be essentially different 

 from T. Cornuti. It appears to be a form with more compact congested panicles, a pecu- 

 liarity that might possibly result from its being grown in the well-drained soil of the 

 Berlin Botanic Garden. 



Thalictrum Canadense. Cornute, Cauad. PI. Hist., 186, tab. 18*7, (1635). Provancher, 

 Fl. Canad., p. 5. 



T. Amerkanum. Parkinson, Theatr., 265, u. 9, (1640). 



T. maj as, foliis aquilegiœ, flore alho. Morison, Historia Plantarum, III., p. 325, (1680). 



T. Canadense, caule pHrpumscente, Aqidiegiœ foliis, florum staminibus albis. Tournefort, 

 Inst. Eei Herb., p. 2*71, (1*700). 



Banks of rivers as far north as lat. 56", in wooded districts, the whole breadth of the 

 continent, excluding the barren groimds and alpine tracts. — Hooker, Fl. B. A. 



Wet meadows and margins of streams, not uncommon throughout the provinces of 

 Ontario, Quebec, Nova Scotia, New Brunswick. Kingston, Ont., Hardwood Creek, 10th 

 July, 1861, and surrounding country, abundant ; Halifax County, not rare. — Laivson. Fre- 

 quent in Quebec province. — Mr. Barns/on. Chippewa and Maiden, Out. — Dr. P. W. 

 Marhigan. Gaspé, moist places along the Dartmouth Eiver. — Dr. John Bell. Windsor, 

 N.S. — Prof. How. Prescott and Ottawa, common. — B. Billings jr. Lake Superior. — Prof. 

 R. Bell. Belleville, common on the borders of streams. — Macoun. Anticosti, 1861. — 

 Verrill. Newfoundland, Bonne Bay and Point Eich, July-August, 1861. — J. Richardson. 

 Between Wild Eice Eiver and Eed Lake Eiver, September, 1860 — Dr. Schullz. Assini- 

 boine EiA^er, July, 1861, Nos. 40-50. — Dr. Schullz. From the Atlantic through the wooded 

 districts " to the Pacific," north to Peace Eiver. — Macoun. Manitoba House, 14th June, 

 1881, and Long Lake, N. W. Territory, '7th July, ISld.—lMacoun, in Herb. Can. Surv. St. 

 Marie (Beauce). — Provancher. Abundant in the Atlantic proA'iuces of Canada, but its 

 western or Pacific range has not been well traced. Cultivated in England in 1640, 

 (Parkinson, 1. c). 



2.— Thalictrum occidentale, Gra?/. 



This is referred to by Brewer and Watson as very like the southern T. Fendleri, except 



Sec. IV., 1884, 4. 



