12 



GENTIANACEAE. 



VOL. III. 



4. Dasystephana Saponaria (L.) Small. 

 Soapwort or Blue-Gentian. Fig. 3356. 



Gcntiana Saponaria L. Sp. PI. 228. 1753. 

 Gentiana Caicsbaci Walt. Fl. Car. 109. 1788. 

 D. Saponaria Small, Fl. SE. U. S. 930. 1903. 



Perennial ; stem erect or ascending, terete, 

 slender, simple or with short erect axillary 

 branches, glabrous, or minutely rough-puber- 

 ulent above, i-2* high, leafy. Leaves lan- 

 ceolate, ovate-lanceolate or oblong, usually 

 acute at both ends, 3-5-nerved, roushish-mar- 

 gined, 2'-^' long, the lowest obovate and 

 smaller; flowers i'-2' high, in sessile terminal 

 and usually also axillary clusters of 1-5, 

 2-bractco!ate under the calyx; calyx-lobes 

 oblong or spatulate, ciliolate; corolla blue, 

 club-shaped, its lobes erect, obtuse, equall ng 

 or longer than the cleft or lacerate append- 

 ages; anthers cohering in a tube; capsule stip- 

 itate ; seeds broadly w-inged. 



In wet soil, Ontario to Minnesota, Connecticut, 

 Florida and Louisiana. Calathian violet. Harvest- 

 bells. Rough or marsh-gentian. Sampson snake- 

 root. Aug.-Oct. 



5. Dasystephana Andrews!! (Griseb.) Small. 

 Closed Blue or Blind Gentian. Fig. 3357. 



JGenliana alba Muhl. Cat. Ed. 2, 29. 1818. 

 JGentiana claitsa Raf. Med. Fl. i : 210. 1832. 

 G, Andrewtii Griseb. in Hook. Fl. Bor. Am. 2 : 55. 1834. 

 D. Andren-sii Small, Fl. SE. U. S. 930. 1903. 



Perennial; stout, glabrous, i-2 high, simple, 

 leafy. Leaves ovate to lanceolate, 3-/-nerved, acu- 

 minate at the apex, narrowed or sometimes rounded 

 at the base, 2'-$.' long, rough-margined, the lowest 

 oblong or obovate, smaller; flowers I'-i-J' high 

 in a terminal sessile cluster and commonly I or 2 

 in the upper axils, 2-bracteolate under the calyx ; 

 calyx-lobes lanceolate or ovate, ciliolate, usually 

 spreading; corolla oblong, club-shaped, blue, or 

 occasionally white, nearly or quite closed, its lobes 

 obsolete, the intervening appendages very broad, 

 light colored, opposite the stamens; anthers coher- 

 ing in a tube; capsule stipitate; seeds oblong, 

 winged. 



In moist soil, Quebec to Manitoba, Georgia and Ne- 

 braska. Cloistered-heart. Bottle- or barrel-gentian. 

 Aug.-Oct. 



6. Dasystephana flavida (A. Gray) Brit- 

 ton. Yellowish Gentian. Fig. 3358. 



G. flavida A. Gray, Am. Journ. Sci. (II.) 1 : 80. 1846. 

 G. alba A. Gray, Man. 360. 1848. Not Muhl. 1818. 



Perennial ; stem stout, terete, glabrous, sim- 

 ple, erect or ascending, i-3 high. Leaves ovate- 

 lanceolate or oblong-lanceolate, smooth-mar- 

 gined, acuminate at the apex, subcordate. clasp- 

 ing or rounded at the base, 2'-$' long, i'-2'wide; 

 flowers several or numerous in a sessile terminal 

 cluster and sometimes i or 2 in the upper axils, 

 ii'-2' high, 2-bracteolate under the calyx; 

 calyx-lobes ovate, acute, smooth or minutely 

 rough-margined, shorter than the tube, at length 

 spreading; corolla campanulate-funnelform, 

 open, greenish or yellowish white, its lobes 

 ovate, acute or obtuse, twice as long as the 

 erose-denticulate appendages ; anthers cohering 

 in a tube; capsule stipitate; seeds winged. 



In moist soil, Ontario to Minnesota, Missouri, 

 Virginia and Kentucky. Aug.-Oct. 



