GENTiANA. pentandria. digynia. 



Hab. In fields and in woods. Long-Island and New-Jersey, 

 September. Eddy. 



This species strongly resembles the preceding, and has evi- 

 dently been confounded with it by several authors. It, how- 

 ever, is easily distinguished by the characters given above. In 

 habit it much resembles G. cruciata of Europe. 



3. G. Pneumonanthe L. : stem terete; leaves linear-lao- 

 ceolate, obtuse; flowers few, terminal, (and axillarj) subses- 

 sile ; segments of the cal)'X linear- oblong, rather acute ; co- 

 rolla campanulate, 5-cleft; segments aciite ; interior plaits 

 short, 1 -toothed. JV il I d. Spec. I. p. 1 356. Smith FL 

 Brit. I. p. 285. Eng. Bot. t. 20. M i c h. FL I. p, 176. 

 Pursh Fl. I. p. 1 85. Muhl. Cat, 29. G. Pseudu-Pimi- 

 monanthe Roem, £s? Sc A« //. VI. p. 146. 



Root perennial. Stem about a foot high, erect, simple, very 

 smooth, purple. Leaves an inch and a half long, almost linear, 

 generally obtuse. Flowers large, 2—3 in a terminal fascicle, with 

 one or two solitary ones near the summit of the stem. Segments 

 of the calyx shorter than the tube. Corolla bright blue ; seg- 

 ments ovate, a little acuminate ; interior plaits very short, acute, 

 confluent on one side with the exterior segments; anthers 

 connate. Capsule fusiform. 



Hab. On high mountains near the borders of lakes and rivera, 

 Canada to Pennsylvania. Pursh. Portland, Maine. B ig e- 

 low. Calathian- Violet. 



The North- American plant, which has been made a distinct 

 species by Ro emer is' Sc hu 1 1 es, differs in no respect 

 from numerous European specimens in my Herbarium.* It 

 was obligingly communicated to me by Dr. Big- e low. 



4. G. angustifolia M i c h. : stem simple, slender,! -flower- 

 ed ; leaves linear, spreading ; corolla infundibuliform, 5. cleft, 

 with 5 interior lacerate segments. Mich. Fl. ]. p. 177, 

 Pursh F/. I. i^.lSG. EUiottSk.hip.3U. Roem.^- 

 Schult. VI. p. 170. A. purpurea Walt. Car. p. 109. 



Root perennial. Stem about a foot high, terete, very smooth. 

 Leaves long-linear, smooth, rather obtuse. Flowers nearly 2 

 inches long, generally solitary at the extremity of the stem. 

 Tube of the calyx pentangular ; segments subulate, longer 

 than the tube. Corolla azure-blue ; exterior segments ovate, 

 very acute; interior lacerately divided, much shorter; an- 

 thers distinct. Cafisule fusiform, on a long pedicel. 



Hab. Borders of swamps in the pine barrens of New-Jersey. 

 October — November. 



This is one of the most beautiful plants of North-America. 



5. G. linearis F ro e L: stem somewhat scabrous ; leaves 

 linear-lanceolate^ undulatCj ciliate, as are also the segments of 



