CONSPECTUS. 329 



7. Pilea^ Lindl. Richweed. Clearweed. Sjyecies : 



Pilea pumilay Gray. 



8. Boehmeria^ Jacq. False Nettle. JSjjecies : 



Boehnieria cylindrical Willd. 



9. Parietaria, Tourn. Pellitory. JSpecies : 



Parietaria Pennsylvanica, Miilil. 



Sub-order IV. — Camiahinece. Hempworts. 



10. CannabiSyToxiVYi. Hemp. tSj^ecies : C.sativa,Jj. 



1 1. Hamulus^ L. Hop. Species : Humidus lupuhcs, L. 



ORDER CV. 



platanace^, or sycamores. 

 Genus : 



1. Platcmus, L. Plane-Tree. Button wood. Species: 

 Platanus occidentalism L. American Plane-Tree or Sycamore. 



ORDER CVI. 



JUGLANDACE^, OR THE WALNUT FAMILY. 



1. Juglaiis, L. Walnut. Species 2. 



2. Carya^ Nutt. Hickory. Si^ecies V. 



ORDER CVII. 



cupulifer^, or mastworts. ' 

 Genera : 



1. Quercus, L. Oak. Species 18. 



2. Castanea^ Tourn. Chestnut. Species 2. 



3. Fagus, Tourn. Beech. Species : 



Fccgus ferruginea, Ait. 



4. Corylus, Tourn. Hazelnut. Filbert. Species 2. 



5. Carpinus^ L. Hornbeam. Iron-wood. Species : 



Garpinus Americajia^ Mx. Blue or Water-beach. 



6. Ostrya^ Mich. Hop-Hornbeam. Iron-wood. Species : 



Ostrya Virgi?iica, Willd. Lever-wood. 



