20 SUMMARY. WATSON’S TYPES. 
SUMMARY.—WATSON’S TYPES OF DISTRIBUTION. 
—RARITIES.—EXTINCTIONS.—ERRORS.— PLANTS TO 
BE LOOKED FOR.—PLAN OF FLORA. 
i) ae total number of flowering plants in the County amounts 
to 1,001 species, representing 187 genera and 41 orders. 
Of the above number of plants 878 come under the headings of 
natives, colonists, and denizens, 74 of the remainder being aliens 
and 49 casuals. To these must be added 23 Filices, 5 Hquiseta, 
5 Lycopodiacee, making, with the Phanerogams a grand total of 
1,034. 
Mr. Watson’s Types of Distribution are six in number, 
yaa, 3——= 
B.—British—widely spread through south, mid., and. north 
Britain. 
E.—English—chiefly seen in south or south-middle Britain. 
S.—Scottish—chiefly seen in north or north-mid. Britain. 
I.—Intermediate—chiefly seen in mid. Britain. 
' H.—Highland—chiefly seen about the mountains. 
G.—Germanic—chiefly seen in east England. 
A.—Atlantic—chiefly seen in west England. 
L.—Local—restricted to single or few provinces. 
There are a large number which do not come under one only 
of the above heads, which are accordingly indicated by two 
letters combined. 
The accompanying table shews the constitution by types of | 
the Derbyshire Flora :— 
British is As aa? ve 3D 
Brit.-Eng. wa set AH 99 
Brit.-Scot. oe at ate lsh 
Brit.-Int. on one ae 3 
Brit.-High. a vas 4 
Brit.-Ger, a oy a 1 
Brit.-Atl. if 
es 494 
