BAKER’S NORTH YORKSHIRE. 
366 
the Malton road beyond Heworth, with Pyrola minor ; W. 
Whitwell. Cultivated in gardens up to 350 yards. \ 
Asarum europeum L. Alien. Subspontaneous in a 
wood near the hall at Newby Wiske. Probably a garden 
escape, but now well established. 
Aristolochia Clematitis L. Alien. Subspontaneous or Í 
planted near the old castle in Mulgrave woods (W. Mudd !) 
and about Wykeham Abbey ; W. Bean. ; 
Empetrum nigrum L. Scottish type. Native. Montane. § 
Areago87.54321. Range 0-850. Common amongst the y 
hills upon both sides of the Central Valley, ascending to the (* 
peaks of Dod Fell and Mickle Fell. At Saltwick Ness near 
Whitby I have seen it almost within reach of the tide, lt isa 
plant of the heaths of the Howardian tract, but I am not aware 
that it occurs amongst those of the Central Valley. 
Euphorbia helioscopia L. British type. Colonist. Area : 
general. Range 0-300. Common in cultivated fields through- y 
out the lower zone, ascending to the Hambleton plateau over { 
Hawnby. d 
Euphorbia platyphylla L. English type. Colonist. 
Area 6.1. Range o-1oo. Cultivated fields at Rawcliffe (O. A. 
Moore) and Haxby ; 2. Spruce. Fields between Acomb and 
Dringhouses ; Æ. Zbbotson, G. Webster. 
Euphorbia hiberna L. Alien. Subspontaneous or 
planted in Kildale woods; W. Mudd ! d 
Euphorbia Cyparissias L. Alien. Casually subspon- a 
taneous in waste ground. Snape Mires; Z: Simpson. Cliff Rig, 
near Ayton; W. Mudd ! 
Euphorbia exigua L. English type. Colonist. Area RP 
general. Range o-250. Frequent in cultivated fields in the 
lower zone. 
Euphorbia Peplus L. British type. Colonist. Area a 
general. Range 0-350. Common in cultivated fields, ascend- 
ing as high as field cultivation reaches. 
