44 BOTANY OF I^A SAl^I/E COUNTY. 



leaflets; involucre of 2 or 3, 2 or 3 parted leaflets. 



A. Thalictroides. Flowers, W., X to % inches 

 broad; several; very slender; M. Woods and 

 fields about trees. 

 THALICTRUM, P. Meadow; Rue. 



Plants with three parted compound leaves, each 

 part composed of many small, roundish, notched 

 leaflets; flowers small, of two kinds, the stam- 

 inate in dense plume-like greenish or P. clusters. 



T. dioicum. Smooth and pale green, 1 to 2 foot 

 hig-h; leaves all petiolate, leaflets drooping-; 

 filaments of stamens hair-like, W., anthers 

 yellow, drooping 1 . Ap. M., Dry lands. 



T. polyg-annm. Tall, smooth, 4 to 8 ft. high; 

 stem leaves sessile; leaflets thickish; flowers W. 

 some perfect; filaments of anthers white, 

 anthers not drooping-. T. Cornuti of the 5th Ed. 

 along* streams and in damp meadows. 



T. purpurascens. Stem usually purplish, 2 to 4 

 ft hig-h; leaves sessile or nearly so, veiuy and 

 netted beneath; flowers greenish and purplish. 

 M. Ju. Dry lands. 

 MYOSURUS. Mouse Tail, 



minimus, leaves long-, narrow, entire, thick 

 flowers small on 1 flowered seape; fruit forming- 

 a spike like head 1 to 2 in. long-, 2 to 4 in. hig-h. 

 Each plant seems to be a tuft of narrow leaves 

 and thick stems. Sandy land, 

 RANUNCULAS, P. Crowfoot. Buttercups. 



Low, often, hairy plants, stems frequently 

 trailing- after flowering- if not before, with 

 brig-ht green, lobed and toothed leaves, yellow 

 flowers and fruits collected in a small head and 

 frequently tailed. 



R. aquitalis. Leaves all under water and divided 



