aONSPECTUS. 339 



7. Pika, Lindl. Rich weed. Clearweed. ^ecies: 



Pilea pumila, Gray. 



8. Hoehmeria, Jacq. False Nettle. Species: 



Bcehmeria cylindrica, "Willd. 



9. Parietaria, Tourn. Pellitory. Species : 



Parietaria Pennsylvanica, Muhl. 



SuB-OEDEE IV. — C'annabinecB. Hempworts. 



10. Cannabis, Toxxm. Hemp. Species: C.sativa,L. 



11. Ifumulus, Jj. Hop. Species: Jlumulus lupulus, L. 



ORDER CV. 



plataitace^, oe stcamoees. 

 Genus : 



1. Platamcs, L. Plane-Tree. Buttonwood. Species: 

 Platanus ocddentalis, L. American Plane-Tree or Sycamore. 



ORDER CVI. 



JUGLANDACE^, OE THE "WALNUT FAMILY. 



1. Juglans, L. Walnut. Species 2. 



2, Carya, Nutt. Hickory. Species 7. 



ORDER CVII. 



cupulieee^, oe mastwoets. 

 Geneea : 



1. Quercus, L. Oak. Species 18. 



2. Castanea, Tourn. Chestnut. Species 2. 



3. Fagus, Tourn. Beech. Species : 



Fagus ferraginea. Ait. 



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



5. Carpinus, L. Horabeam. Iron-wood. Species: 



Carpinus Americana, Mx. Blue or Water-beach. 



6. Ostrya, Mich. Hop-Horabeam. Iron-wood. Species : 



Ostrya Virginica, Willd. Lever-wood. 



