baker's north YORKSHIRE. 
the Middle, and 24 of the Upper zone ; and they range under 
the types of distribution as follows, viz.: British 103, English 
26, Scottish 5, Highland 5, Germanic 4, Intermediate i,. 
Local 2. 
APPENDIX A. 
INTRODUCED PLANTS OF THE MIDDLESBRO' BALLAST HILLS. 
The following is a list of the more noteworthy plants which 
from time to time have been noticed upon the ballast hills 
near the mouth of the Tees upon the Yorkshire side of the 
river. A considerable extent of surface which once was waste 
ground is now built over, and doubtless a large proportion 
of the species enumerated have entirely disappeared. The 
species not otherwise known as plants of North Yorkshire 
have their names printed in Italics : and all of these, except 
such as are expressly otherwise localised, are known as 
Natives or well-established Aliens elsewhere within the 
limits of Britain. 
Papaver somniferum L. 
Fumaria confusa Jordan. 
viicvantha Lagasca. 
Iberis amara L. 
Lepidium Draba L. 
ruderale L. 
Camelina sativa Crantz. 
Erysimum cheiranthoides L. 
Sinapis nigra L. 
Reseda Phytetma L. Native 
of Belgium, Switzerland, 
France and Southern 
Europe. 
Melilotus vulgaris Willd. 
Medicago maculata Sibth. 
Trigone lla ornUhopodioides D.C. 
Trifoliim subterraneum L . 
incarnatum L. 
striatum L. 
Vicia villosa Host. Inhabits 
cultivated fields in Scan- 
dinavia, Belgium, 
France and Southern 
Europe. 
Vicia hitea L. 
Bupleiinm temiissimnm L. 
Foeniculum vulgar e Gaertn. 
Pastinaca sativa L. 
Carduus pycnocephalus L, 
Native of France and 
the shores of the Medi- 
terranean. 
