300 SUMMARY ANALYSIS OF THE 
. 
perce TOU given below are deduced from the total use 1059. 
Separating this number into the three primary divisions, we have: 
Dicotyledons se M or 73:28 per mé 
Perae aop S e ED » 2961 , , 
Acotyle don "iie ee 33 » » 3:11 3 ” 
1059 100-00 
Herbaceous Vue 9. 937 or 88°47 per cent. 
r Woody s Specie: A tee » 11:53 » ” 
1059 100:00 
Perennial species 767 or 72°42 per cent. 
Annual or biennial species 292 7 7:58 
1059 100-00 
The numbers and percentages of twelve of the predominating orders 
are : 
Gramines . 7.57 ^89 ur or T7: a P cent. 
m posite p. 18 T3 E 
Cyperae ET S » 566 s 
a s 60 y a P60 a y 
Leguminosæ EE iy y £91... 23 
belliferze A3 4:408 , à 
Cruciferze E . 40 » 35 3 i 7 T 25 3 
Orchidaces: 5 : : : à 25 
Totals . $5 ce, nod 
The only order greatly affected by t by the difference in views respecting 
what should constitute à species is the Rosacez, which, computed accord- 
ingto Hooker (*Student's Flora "), would include. thirty-two instead of sixty 
species, or 3:02 instead of 5:66 per cent., re g the total of these 
duc 
orders to 51:88—a little more than half of the jecit reported as grow- 
ing in the county. 
In proportion to the area (1461 square miles), we have relatively a rich 
flora, as will be seen on a comparison with those of other districts. For 
instance, Northumberland and Durham (area 2925 square miles) include 
5 species, and Yorkshire (area 5836 square miles), 1127 species. 
g due allowance for the position and climate of these northern 
the number of species in this district. These may be sought in the 
diversity and fertility of soil, and the nature of the subjacent t rocks or strata. 
3 w of the more interestin ng features of the are :— Number of 
species to area, species peculiar to different formatio , maritime species, 
"- rare species, especially those of the * Atlantic nre * Scottish ” types. 
