THE BATTLE OF LIFE. 



93 



They occur in very varying proportions on the different 

 plots according to the season and according to the nature 

 of the manure employed. They vary somewhat in ro- 

 bustness of constitution and ability to withstand frost or 

 drouth ; and their structural characters are, generally 

 speaking, characteristically different from those of other 

 plants, and variable as between species and species. Some 

 maintain their ground or even increase when growing in 

 competition or association with their fellows ; others 

 such as AntJioxantlmm odoratum, Festuca ovina, and 

 Agrostis vulgaris can only hold their own or assert 

 themselves when the competition exercised by their asso- 

 ciates is relatively weak, and succumb under the opposite 

 circumstances. 



Avena flavescens = Yellow oat-grass. 



Poa pratensis = Meadow grass. [Blue grass.] 



" trivialis Rough stalked meadow grass. 



Briza media = Quake-grass. 



Dactylis glomerata Cock' s-foot grass. [Orchard G.] 



Cynosurus cristatus Crested dog's-tail grass. 



Festuca ovina Sheeps' fescue. 



" pratensis Meadow fescue. 



" elatior Tall fescue. 



Bromus mollis =- Soft brome grass. 



Lolium perenne Rye grass. 



LEGUMINOS^E. 



Trifolium repens = White clover. 



" pratense Meadow clover. [Red clover.] 



Lotus corniculatus = Bird 's-foot trefoil. 



Lathyrus pratensis = Meadow vetchling. 



WEEDS. 



Ranunculus-various species= Buttercups. 

 Cerastium triviale 



Conopodium denudatum = 



Centaurea nigra = 



Carduus arvensis = 



Bellis perennis = 



Achillea Millefolium 



Taraxacum officinale 

 Plantago lauceolata 

 Rumex Acetosa 



Mouse-ear chickweed. 



Earth nut. 



Knap-weed. 



Common thistle. [Canada T.j 



Daisy. 



Milfoil. [Yarrow.] 



Dandelion. 



Plantain or Rib grass. 



Sorrel-dock. 



