I3O NEW YORK STATE MUSEUM 



panicles, each flower about one-fifth of an inch broad; divisions or follicles 

 of the fruit pubescent. 



In wet meadows, swamps and low ground, Nova Scotia to Manitoba 

 south to Georgia and Kansas. Flowering from July to September. 



The Corymbed Spiraea (Spiraea corymbosa Rafinesque) , 

 with oval, ovate or orbicular leaves, slightly cordate at the base, or rounded, 

 and with small white flowers in dense terminal, often leafy corymbs, is 

 found occasionally on rocky banks and in wood of the southern part of 

 the State. 



Indian Physic; Bowman's Root 

 Porteranihus trifoliatus (Linnaeus) Britton 



Plate 91 



Stems erect, herbaceous, 2 to 4 feet high, from a perennial root, usually 

 branched, glabrous or slightly pubescent. Stipules small, one-eighth 

 to one-fourth of an inch long, entire or toothed. Leaves sessile or nearly 

 so, three-foliate; leaflets oval, ovate, lanceolate or slightly obovate, long 

 pointed at the apex, narrowed at the base, 2 to 3 inches long, irregularly 

 toothed. Flowers white or pinkish, one-half to two-thirds of an inch 

 long on slender peduncles, in loose, terminal, leafy panicles; calyx reddish, 

 five-toothed, ten nerved; petals five, linear-lanceolate, somewhat unequal. 



In woods and thickets, Ontario and New York to Michigan, Georgia 

 and Missouri. Flowers in June and July. 



A closely related species, Porteranthus stipulatus 

 (Muhlenberg) Britton, has incised leaflets, broad, foliaceous, incised 

 stipules and slightly smaller flowers. Its range is about the same. 



Common Five-finger or Cinquefoil 



Potent ilia canadensis Linnaeus 



Plate 92a 



Stems ascending, a few inches high, spreading by slender runners 

 3 inches to 1 or 2 feet long; the pubescence of the stem, petioles and peduncles 

 spreading. Leaves petioled, digitately five-foliated; leaflets oblanceolate 



