21 8 NEW YORK STATE MUSEUM 



Stamens four, attached to the inner base of the corolla and not projecting 

 out of the flower. 



In low meadows and moist, open woods, Quebec to Minnesota, south 

 to Georgia and Iowa. Flowering in September and October. 



The Smaller Fringed Gentian (Gentiana procera Holm) has 

 linear leaves and the corolla segments fringed mainly on the sides with 

 shorter hairs. It is rather rare in this State. 



The Stiff Gentian (Gentiana quinquefolia Linnaeus) , (Fig- 

 ure XXV) has smaller flowers in dense clusters at the ends of the branches; 

 the blue corolla tube is one-half to three-fourths of an inch long with five 

 equal, triangular lobes which are not fringed. Rather common in dry or 

 moist shady woods. 



Closed Blue or Blind Gentian 



Dasystephana andrewsii (Grisebach) Small 



Plate i 68 



Stems stout, smooth, i to 2 feet high, and usually unbranched, from 

 a perennial root. Leaves opposite, ovate to lanceolate, three to seven- 

 nerved, pointed at the apex, narrowed or rounded at the sessile base, rough - 

 margined. Flowers i to i| inches high, sessile in dense, terminal clusters 

 and usually with one or two in the axils of the upper leaves. Each flower 

 with two bracts beneath the calyx. Calyx lobes five, ovate-lanceolate, 

 ciliate, somewhat spreading. Corolla blue, rarely white, club-shaped, 

 nearly or quite closed at the summit, its lobes indistinct, the intervening 

 appendages very broad and light colored. Stamens five, their anthers 

 united into a tube. 



In moist soil and damp thickets, Quebec to Manitoba, south to Georgia 

 and Nebraska. Flowering from late in August to October. 



The Soapwort Gentian (Dasystephana saponaria 

 (Linnaeus) Small) closely resembles the Closed Gentian, but the leaves 

 are usually pointed at each end and the corolla lobes distinct, and longer 

 than or equaling the intervening plaits. The Yellowish Gentian (Dasy- 

 stephana flavida (A. Gray) Britton) has a greenish or yellowish 

 white corolla, distinctly open at the summit, and ovate-lanceolate leaves. 



The Narrow-leaved or Bog Gentian (Dasystephana linearis 

 (Froelich) Britton) possesses. an open, blue corolla and linear-lanceolate 



