66 THE JOURNAL OF BOTANY 
endemic species. Against this view there is the fact that it has 
not yet been found in ground undisturbed by man, indeed it is 
more usually found, not in crops of British clover, but in fields of 
t 
weeny of the individual grasses. So abundant sometimes is it 
at once in eight square yards I gathered a hundred specimens. 
in these fields it is sehcated with B. mollis, B. commutatus, B. 
racemosus, B. secalinus, and B. sterilis; but I have never seen 
arvensis, Silene eeetone, Crepis nicaensis, Vicia villosa, or other 
southern or eastern casuals. 
British distribution, so far as it is known, is English- 
Germanic, and thi may also be held to militate against its being 
indigenous. In ee majority of localities where it has been observed 
it is not permanent, and this is caused by the temporary nature of 
9 crop with which it is associated. The vetches and ‘‘seeds”’ are 
either cut in the early stage for saree, or eaten off by sheep, so 
that specimens are not allowed to go to seed, That it can seed if 
allowed the chance is evident by its ie ence in small quantities 
for a year or two after it had been plentiful in a rye crop which had 
been allowed to ripen, and it has been seen in small quantity in a 
wheat gdh whic had replaced a clover crop in which it was lea 
have distributed specimens through Dorfler 
Herbarium Noone and this may lead to its being detected (as I 
should expect) in foreign cornfields, and afford i nformation which 
is at present lacking as to its distribution and origin 
it is not a recent introduction is proved b the fact that a 
resembles that ae dwarf and littoral state of B. mollis, which 
s been See called ‘ B. pe eo by several British 
‘ se i 
herbarium of Mr. H. C. Watson at ams and there is another in 
the British Museum Herbarium; both are B. interruptus. 
e following is the comital distributiba: where no other 
authority is named, I am responsible :— 
Bromus —— s Druce, see Pharm. Journ. Suppl. Oct. 5 
95) ; oe ie 1895, p. 8344; Journ. Linn. Soc. xxxii. 
PP. 426- 80 (189 
B. mollis Linn. var. ua Hackel in Rep. Bot. Exch. Club, 
1888, 240. 
B. pseudo- — —— ex Watson in Phyt. iii. pp. 807-8 
a ; sine diagn 
Kent (Wo lley-Doa, Fi. Kent, pp. 418-4, and Rep. B 
Exch. Club, 1893, p. 429); “Surrey (G. Nicholson) Hants ‘— siveds 
