322 PRACTICAL BOTANY. 



ORDER liXXXI. 



conyolvulace^, or bindweeds. 

 Genera : 



1. Quamodit, Tourn. Cypress- Vine. ^S27ecies : 



Qiiamoclit coccinea^ Moench. 



2. Ipomoea, L. Morning-Glory. Species 4. 



including the sub-genus Pharhitis. 



3. Co7ivolvulus, L. Bindweed. Sjyecies : 



Convolvulus arvensis, L. 



4. Calystegia^ R. Br. Bracted Bindweed. Species 2. 



5. Stylisma, Raf. Species 2. 



6. JDicho?idra, Forst. Species : 



Dichondra repens^ Forst. Yar. Carolinensis. 

 1. Cuscuta, Tourn. Dodder. Sjyecies 9. 



ORDER LXXXII. 



solanace^, ok nightshades. 

 Genera : 



1. Solanum, L. Nightshade. Species 3. 



2. JPhi/saliSy L. Ground Cherry. Species 3. 



3. Nicandra, Adans. Apple of Peru. Species: 



Nicandra p>hyso.loides^ Gaertn. 



4. Hyosciamus, Tourn. Henbane. Species: 



Hyosciamus niyei\ L. Black Henbane. 



5. Datura, It. Jamestown-weed. Thorn-Apple. Speoies: 



Datura Stramonium, L. 



6. Mcotiana, L. Tobacco. Species: 



Nicotiana rustica, L. Wild Tobacco. 



ORDER 



GENTIAN ACE^, OR GENTIANWORTS. 



Genera : 



1. Sahhatia, Adans. American Centaury. Species 8. 



2. Mrythrma, Pers. Centaury. Species 3. 



