428 MR. G. C. DRUCE ON A NEW SPECIES OF GRASS, 
Mr. F. Tufnail tells me that it has been cultivated at 
Reading by the side of B. mollis, and that it keeps quite distinct. 
B. interruptus is not so much inclined to vary either as he 
height or condition of hairiness as B. mollis, and seeds of the 
two species may be separated one from the other. . 
Since the publication of the eighth edition of the ‘ London 
Catalogue’ more than a hundred species have been added. to the 
list of British plants; it is scarcely probable that botanists of 
another decade will agree in retaining all of these. In bringing 
forward the claims of an aspirant for specific distinction, I 
place stress upon a well-marked character which differentiates 
it from its nearest ally, this structural character not being made 
out until its peculiar habit, its more perennial growth, &c., 
had marked it as being a probably distinct species. In fact the 
suggestion made by the lamented Professor Babington in his 
preface to the ‘ Manual,’ has in this instance been complied with, 
namely, to make the species afford the character, not the 
character the species. . 
I have seen specimens of B. interruptus from Oxfordshire, 
Berkshire, Buckinghamshire, W. Kent, and Norfolk. Mr. 
Tufnail says he has found it rather plentiful near Lowestoft, in 
Suffolk, and that he had seen specimens from Lincolnshire. 
Bromus ivrerrvrres, mihi. Herba annua, biennis aut 
perennis, sepius perennis, Spicule in pedicellis brevibus 
rigidis singillatim (alternatim 
rhachide disposite ; 
Subsessilibus 
Panicula, flore 
interrupta. 
dextrorsum et sinistrorsum) in 
singuli pedicelli cum 3-5 sessilibus aut 
spiculis apice pedicelli racemosim dispositi. 
m et fructum gerens, erecta angusta evidenter 
Spicule, florem et fructum gerentes, erect primum 
late acute ; proventu ovales et obtuse cum 6-12 
glauco-viridis pubescentes. Gluma interior et vacua 
dimidia non supra in partem sexti floris (tertii floris in eodem 
latere) producta. Glume, florem et fructum gerentes, arcte 
imbricatw. Palea inferior exterior marginibus dimidia parte 
inter mediam paleam et apicem utrogue latere obtuse angu- 
lata, 5-7 costata ; apice nonnihil emarginata, pubescens aut 
subglabra marginibus late scariosis. Arista ex una emar- 
ginatione inferioris pales procedens, fere directa aut erecta, 
paleé nonnihil brevior. Palea superior interior (gluma florens 
superior) pene ad basin in binas angustas lanceolatas partes, paled 
Ovali-lanceo 
floribus 
