1869.] LAWSON — ON THE RANUNCULACE^. 409 



unsettled are suggested for investigation. Of Clematis, we have 

 two species, one local and the other general in its distribution, 

 the first of these, C. Vlrginiana, grows around the rifle range at 

 Bedford, and at Windsor N.S. ; it extends to Lake Winnipeg, 

 Isle Verte being its last point north-eastwardly. The subgenus 

 Piihatilla is confined to the North West, whence numerous speci- 

 mens have been received from Grov. McTavish. The common form 

 of the species, named P. NuttuUiana, is now known to be identical 

 with P. Wolfgangiana of the Russian botanists, which is itself a 

 variety of the European P. patens. Two forms from the North- 

 West are described, besides alpina, one of which does not accord 

 with Kegel's Wolfgangiana. Anemone d'lchotoma is shown to be 

 the proper name for the plant hitherto known as A. Pennsi/lva- 

 nica. Of A. nemorosa, the Windflower of English forests, four 

 varieties are described as inhabiting the Dominion, one a small 

 northern form, and another found at Belleville by Mr. Macoun. 

 A. Richardsonii has been received only from the Hudson's Bay 

 Territories. A. Hepatica is shown to be essentially an Ontarian 

 and New England plant, although found to extend into Nova 

 Scotia, having been gathered at Windsor by Professor How. A. 

 acutiloha is restricted and less southern in range. A. narcissifloTa 

 is not known to exist within British America, although it occurs 

 in the United States in the Rocky Mountains. A. parvijiora is 

 a North-Western plant, and is found also at Gaspe by Dr. Bell, 

 of Montreal, and on Anticosti, and has usually 5, not 6 petals, as 

 described. A. muUifida has not yet been collected in Canada, 

 except on the Gulf shore and in the North-West, but will probably 

 reward some diligent searcher in Ontario. A. Pennsylvanica haf' 

 a wide and southern range. A. ct/lindrica, a sand-hill plant, is 

 confined to central and western Ontario. 



Syndesmon is a curious little plant, a link between the Wind- 

 flowers and Meadow-rues, but has only been found in two localities, 

 although in the adjoining States it is not rare ; its Canadian 

 habitats are St. David's, Dr. P. W. Maclagan ; Hamilton, 

 Judge Logic. 



Thalictruni Cornutl is a stately plant with large masses of 

 showy white blossoms, rendering it conspicuous along the Sack- 

 ville River and on the meadows at Beaver Bank, and is of general 

 distribution throughout the Dominion. T. purpurascens, differing 

 [n its sessile stem-leaves, greenish flowers and drooping anthers, is 

 to be looked for in dry situations ; its record as Lower Canadian 

 Vol. IV. B No. 4. 



