WHITE PINE BLISTER RUST 117 
Detailed information as to the nature of the blister rust and 
the objects of the work are given to all who show interest in the 
work and all information on the subject, gathered from the local 
residents, of either pine or Ribes, will be useful. 
TYPES 
Ten types are recognized and classified, five of which are sub- 
types of white pine, and the other five not white pine. They are 
identified on the map as follows, by number, letter and color: 
NAME COLOR SUB-TYPE DESCRIPTION 
Type I—White Pine—Green—a,—Pure pine 12 in. or over (80% 
W. P.) 
b,—Pure pine 5 in. to 12 in. (80% 
W. P.) 
c,—Pure pine under 5 in. or 25 ft. 
high. 
Type II— - - - - - - - - Pine and Hardwoods. 
Pine and other Conifers. 
Type IlI—Hardwoods—Yellow—over 5 in. d. and at least 67% 
ure. 
Type 11I—Hardwoods—Yellow—over 5 in. d, and at least 67% pure 
Type I1V—Brush—Brown—(to include thickets of briers, shrubs, 
small growth and cutover land, the 
_- latter to be marked with the letter 
sl.) ‘ 
Type IVs] —Brush and Slash—Brown. 
Type IVpc—Brush and Young Pine—Brown. 
Type V —Pasture—Blue—(at least 65% grazing land). 
Type VI —Cultivated land—White—all land not in other types. 
Type VII —Swamps— !. -—the usual swamp designation. 
The boundaries of types II and III are indicated as well as pos- 
sible, but less time is taken in getting minor details of outline than 
in the white pine types. 
Seattered pine or small blocks of pine in other types are indi- 
cated by the letter P, followed by the class symbol, and the density 
of the stand shown by numbers as follows: 
1. Heavy 2. Medium 3. Light 
In white pine stands anything over 21% acres in extent is con- 
sidered as a separate type, and in the other type, anything above 
five acres in extent, is shown as a separate type. All smaller areas 
are classified inthe surrounding types. = — 
