BY JOHft H. SEARS. 103 



ORDER Liliaceoe. 



American White Hellebore, Indian Poke, Veratrum viride, swamps 

 and low grounds. Common. 



Onion or Field Garlic, Allium Canadense, is a vile weed giving its 

 alliaceous flavor to all plants grown in its vicinity. Common. Eu- 

 ropean. 



ORDER Pontederiacese. 



Pickerel weed, Pontederia cordata, common in ponds, brooks and 

 streams. 



ORDER Graminese. 



Cheat or Chess, Bromus secalinus, one of the European grasses com- 

 mon in rye and oat fields. There are four species, all European. 



Dog-grass, Triticum repens, in cultivated grounds, fields, etc. Its 

 long, underground stems cause much trouble to gardeners. 



Joint-grass, Paspalum setaceum, common in light soils, first showing 

 itself in August on tillage grounds. Growing in mats it is difficult 

 to pull out of the soil, as it breaks easily at the joints. 



Panic-grass, Panicum sanguinale, has habits like the last, and is 

 abundant in all cultivated and waste ground. European. 



Old Witch-grass, Panicum capillare, common in sandy, cultivated 

 fields. 



Barnyard-grass, Panicum Crus-galli, is a native of the south of 

 Europe, and one of the principal forage plants in Italy. With us it 

 is a troublesome weed. 



Foxtail-grass, Setaria. Three species exist here. Very common 

 near dwellings and in cultivated fields. They are usually very weedy 

 grasses, resembling the Millet, which is another species rarely spon- 

 taneous. 



Beard-grass, Andropogon furcatus, and scoparius. These two grasses 

 are abundant in dry, sterile grounds and roadsides. 



ORDER Equisetacese. 



Horsetail, Equisetum ai-vense, is common in moist, gravelly soil and 

 on railroad beds where it is a troublesome weed. Equisetum sylvati- 



