94 PRACTICAL NOTES ON GRASSES AND GRASS GROWING. 
Stock are intensely fond of Zrifolium sylvestre, which, in 
spite of its great difference in character, is sometimes carelessly 
mistaken for Zifodtum medium, 
As long ago as 1888 we were puzzling over these wild 
clovers, and one day we cut out a sod with a whole plant 
thereon in full bloom, which we sent to Mr. Martin Sutton, 
the author of the standard work, ‘Permanent and Temporary 
Pastures,” and requested him to let us know all he could about 
it. He at once wrote back declaring it to be Zrzfolium 
sylvestre, and he asked us to collect some seed, as he was 
desirous of experimenting with it with a view to its more 
extended cultivation. 
Recently we wrote again to him on the subject of Zrifolium 
sydvestre, and by his courtesy we are enabled to publish the 
reply we received. 
Mr. Martin Sutton, writing from Kidmore Grange, Cavers- 
ham, on December rgth, 1895, says: 
“Jn reply to your very kind letter, I may say it is a great 
pleasure to be any service I can to you in this matter of 
differentiating Zrifolium pratense, Trifolium sylvestre, and 
Trifolium medium, I haye thought it best to send you dry 
specimens of the three plants. 
“ Trifolium sylvestre is really not a distinct species, but a 
variety of Zrifolium pratense, It is earlier flowering, produces 
little or no seed, and is found growing in old meadows which 
have not been resown for many years. It blooms a fortnight 
earlier than Z7ifolium pratense, and quite a month earlier than 
Trifolium pratense perenne—the true single-cut cow grass in 
commerce. 
“ Trifolium medium, on the other hand (zig-zag clover, the 
cow grass of some botanists), is never found in meadows or 
pastures, but generally in ditches, hedgerows, and waste places, 
on wet heavy soils. It climbs up briars and thorns, much as 
