12 TRIANDRIA DIGYNIA. 
vated feparately in low grounds, would give an 
ample crop. It would anfwer in mixture with 
the Agroftis {tolonifera, which is alfo moft pro- 
ductive in the like fituations. ‘Grounds liable to 
inundation are beft adapted for thefe two, and in 
conjun¢tion their produce muft be great. Phleum 
pratenfe is a late flowering grafs, which fends 
forth numerous ftrong ftems, furnifhed with ftem 
leaves better than half way. The Agroftis ftolo- 
nifera alfo furnifhes many ftems, and abundance 
of leaves; but, from the debility of its ftems, 
and weight of the panicles when appearing, is 
obliged to lean on the under part, which, by this 
time, is fending forth frefh flowering ftems, whofe 
tops foon appear through thofe parts leaning, and 
in a fhort time become matted, to the great detri- 
ment of the whole. As the Agroftis ftolonifera 
foon fpreads over the furface, it would make a 
great progrefs in its leaves and ftems before the 
other began to fpring, and would be in a ftate 
to be fupported and raifed gradually, by the 
{trong and leafy ftems of the Phleum pratenfe. 
Through the gradual elevation of the Agroftis 
ftolonifera thus raifed, and its feeble {tems crof- 
fing the ftem leaves of the Phleum pratenfe, there 
would be an admiffion of air to the bottom, which 
would 
