PREFACR. 1% 
each of these sets they gave a name; 
but they seem to have had no name 
for the individuals of these sets. Thus 
under the name of Bruimsean, or 
Couch-grass, they included Triticum 
repens, Poa pratensis, Holcus mollis, 
and all those grasses which have 
creeping roots. Briza media, Cyno- 
surus cristatus, and all those with 
small naked wiry stems, they ranked 
“under the name of Cuisog, or Trath- 
nin. Lolium perenne, Lolium temu- 
lentum, and those with imbricated 
spike-like heads, they called Raith- 
leadh; and all coarse, harsh or strong 
grasses, such as Poa aquatica, Schoe- 
nus mariscus, Arundo colorata, and 
all the strong carices, they knew by 
the name of Feur seasglar. 
This ignorance of the number and 
specific differences of the grasses, was 
one great cause why their cultivation 
has been so much neglected by our 
predecessors. In order to remedy this 
b defect, 
