BROMUS. 
common, B. D, Waller. Casual below Yore mill, Aysgarth. 
/. Percival. 
Bromus erect us Huds. Native. Xerophilous. Area 
873. Casual below You mill, Cupgarth, Percival. Range 
0-150. About the Magnesian Limestone at Nosterfield 
and in the central Valley of Kirlington. Plentiful upon the 
calcareous Howardine terrace at Hovingham, Slingsby, and 
Hildenley. 
B. secalinus L. Colonist. Area 85432. Range 0-150. 
Not infrequent in cultivated fields in the low country. 
B. commutatus Schrad. Native. Area 9854321. 
Range 0-300. Frequent in cultivated fields and grassy 
places throughout the Lower zone, ascending to the Ham- 
bleton plateau over Hawnby. 
B. mollis L., including racemosus L. Native. Area 
general. Range 0-500. Common in grassy places, ascending 
to Gale and Tanhill. 
B. arvensis L. Alien. Casually subspontaneous in 
cultivated fields. Upsal castle and between Kilvington 
and Kirby Knowle, 1855. 
Brachypodium sylvaticum Beauv. Native. Area 
general. Range 0-350. Common in woods and upon hedge- 
banks throughout the Lower zone, ascending to the lower 
part of Gunnerside gill. 
B. pinnatum Beauv. Native. Xerophilous. Area 6 
3 2. Range 0-150. Plentiful about the Magnesian Lime- 
stone at Thorp Arch, and on the east at Newburgh, and 
on the Middle Oolite at Nunnington and Hovingham. 
Professor Sedgwick writes This grass is so characteristic 
of the Magnesian Limestone soil that in some instances, 
where the lower sandstone is brought by a fault to the leve 
of the yellow limestone, the demarcation may be traced 
with great exactness by the help of this plant without an 
excavation." 
Jan. 1905. 
