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NEW YORK STATE MUSEUM 



Figure XXVIII 



Smooth Beardtongue 



(Pentstemon pentstemon 



(Linnaeus) Britton) 



somewhat glandular inflorescence; 

 the tube of the corolla gradually 

 enlarged above, its throat wide 

 open and scarcely or not at all 

 bearded. Common in woods, 

 thickets and fields; native from 

 Pennsylvania southward. 



The Foxglove Beardtongue 

 (Pentstemon digitalis 

 (Sweet) Nuttall) , also probably an 

 escape in this part of its range, is 

 similar to the Smooth Beard- 

 tongue, but the leaves are some- 

 what broader and more clasping 

 at the base; the corolla is white 

 and I to i^ inches long, abruptly 

 expanded upward and the throat 

 wide open. 



Square-stemmed Monkey Flower 



Mimulus ringens Linnaeus 



Plate igib 



Stems smooth, four-angled, 

 erect, i to 3 feet high from a 

 perennial root. Leaves opposite, 

 oblong to lanceolate in shape, with 

 serrate margins, acute at the apex, 

 sessile or auricled-clasping at the 

 base, 2 to 4 inches long, one-half 

 to i inch wide. Flowers violet- 

 purple, borne solitary in the axils 

 of the upper leaves on long, 

 slender stalks. In fruit these 

 stalks become i to 2 inches long 

 and two to four times as long as 

 the calyx. The calyx is prismatic, 

 five-angled, with five slender, 



