24 CATALOGUE OF PLANTS. 



CniCUS, Tourn. Thistle. 



C. LANCEOLATUS, Hoffiii. (Cirsium, Scop.) — (Common Thistle.) From 

 Europe. In pastures. 



C. altissimus, Willd., var. discolor, Gray. (Cirsium discolor, Sprang.) 

 Fields, etc. 



C. muticus, Pursh. (Cirsium, Michx.) — (Swamp Thistle.) Common. 



C. pumilus, Torr. (Cirsium, Spreng.) — (Pasture Thistle.) Fields; com- 

 mon. 



C. ARVENSis, Hoffm. (Cirsium, Scop.) — (Canada Thistle.) Everywhere. 

 Introduced from Europe, by way of Canada, during the Revolutionary 

 war. 

 Krigia, Schreber. Dwarf Dandelion. 



K. Virginica, Willd. Hanover, N. H. ; Olcott, Vt., etc. 

 Cichorium, Tourn. Chicory or Succory. 



C. Intybus, L. Fields and roadsides. Hanover, etc. From Europe. 

 Tragopogon, L. Goat's-beard. 



T. PORRiFOLius, L. (Salsify. Oyster-plant.) New London, Sargent ; Han- 

 over, etc. A garden escape. 

 Hieracium, Tourn. Hawkweed. 



H. AURANTIACUM, L. From Europe. Found several times by the road- 

 side ; Norwich, Vt. ; Royalton, Vt., Waj'd. 



H. Canadense, Michx. Dry woods ; frequent. 



H. paniculatum, L. Open woods; not uncommon. 



H. venosum, L. (Rattlesnake-weed.) Woods and plains ; common. 



H. scabrum, Michx. Dry woods ; very common. 



H. Gronovii, L. Not common. Dr. Barrows. 

 Prenanth.es, Vaill. Rattlesnake-root. 



P. alba, L. (Nabalus, Hook.) — (White Lettuce.) Borders of rich woods. 



P. serpejitaria, Pursh. (Nabalus Fraseri, DC.) — (Lion's-foot.) Borders 

 of woods ; not rare. 



P. altissima, L. (Nabalus, Hook.) Rich, moist woods. 

 Taraxacum, Haller. Dandelion. 



T. OFFICINALE, Weber. (T. Dens-leonis, Desf.) Fields and pastures; 

 introduced from Europe. 

 Lactuca, Tourn. Wild Lettuce. 



L. Canadensis, L. Borders of fields ; common. 



L. integrifolia, Bigel. (L. Canadensis, var. integrifolia, Torr. & Gray.) 

 With the above. 



L. hirsuta, Muhl. (L. Canadensis, var. sanguinea, Torr. & Gray.) Not 

 uncommon. 



L. leucophaea, Gray. (Mulgedium, DC.) — (Blue Lettuce.) Low grounds; 

 common. 

 Sonchus, L. Sow-Thistle. 



S. OLERACEUS, L. Waste heaps ; common. 



S. ASPER, Vill. North Pomfret, Vt., A. P. Morgan. Both European 

 weeds. 



