98 TRILLIUM. 'No. 91. 



erect lanceolate, petals rather longer lanceolate, obtuse, 

 undulate, dark purple, sessile ; stamens short. From 

 Lake Erie to Tennessee. Var. 1. Mexicatile. 2. Rubri- 

 caule. 3. Maculatum. 4. Orhiculatum. 5. Pallidum. 

 6. Undulatiim. 



3. TV. isanthum, Raf. Leaves drooping sessile, oval 

 elliptic, with an obtuse point, 5 nerved. Calyx and pe- 

 tals equal, erect, oblong acute ; stamens nearly as long. 

 In Ohio, Kentucky, Arkansas. Petals pale purple- Var. 

 1. jSlbiJforum. 2- Parvijtorum. 



4. Tr. tine for ium. B.a(. Root concatenate, red inside: 

 leaves drooping sessile, oval lanceolate, acute trinerve : 

 calyx and petals equal erect, oval lanceolate acute. In 

 the islands of the Missouri river. Is it a variety of TV. 

 isanthum? 



5. Tr. viride. Beck- Leaves ovate acute, maculate ; 

 Calyx ovate lanceolate erect obtuse, petals green, ra- 

 ther longer, spatulate and thick : stamens short. In 

 Missouri. 



6. TV. recitrvahim. Beck. Leaves subpetiolate, ovate 

 lanceolate acute trinerve. Calyx recurved lanceolate 

 acute, petals equal to it, ovate lanceolate, purple : sta- 

 mens short. From Kentucky to Missouri. Variety 

 1. Sessilifoliiim. 2. Obovatum. o. Maculatum. 4. Un- 

 dulatiim, 



7. Tr. angustifollum. Raf, Stem slender, leaves lan- 

 ceolate acuminate, trinerve, undulate, often erect : ca- 

 lyx erect linear lanceolate acute, petals equal, white, 

 lanceolate obtuse j stamens short- In Kentucky, &c. 

 Variety 1. Gracile. 2. Stenopetalum. 3. Maculatum. 

 4- Roseum. 



8. TV- membranaceum. Raf. Stem slender, leaves 

 sessile, thin, and membranaceous, ovate elliptic, obtuse 

 trinerve : calyx erect, ovate lanceolate, obtuse, petals 

 pale, subequal, cuneate acuminate. Glades of Ken- 

 tucky, Illinois, and Missouri. Flower smalU petals of 

 a dirty pale purple. Van 1. EUiptkum. 2. Obovatum. 

 3» Parvifolium. 



, ^ ^^- ^nguicidatum. Raf. Leaves petiolate, oval, 

 tmth ends acute, trinerve: calyx reflexed,. lanceolate 

 obtuse : petals subequal to H, unguiculate, oval, oblong, 

 oDtuse, and purple. In the glades of Indiana, west 



