34 Bulletin Wisconsin Natural History Society [Vol. 12, Nos. 1 & 2 
TABLE 1 
Distribution of plants in Ridgeway bog 
In the following table the various terms are abbreviated thus : Probable 
source of ingression, P. S. of I.; Aquatic Association, 1; Sedge Associ- 
ation, 2; Cassandra Association, 3; Tamarack-Spruce Association, 4; 
Cedar-Balsam-Hemlock Association, 5; Roadside Association, 6; Hill- 
side Association, 7; common, c; few, f; rare, r. Wherever a question 
mark appears it indicates that the species was reported to have for- 
merly occurred in the bog, but that it was not seen by me personally in 
the bog; in such cases the location of its former habitat is fixed accord- 
ing to its habitat in other bogs in the region. 
COMMON NAME 
SCIENTIFIC NAME 
p. s. 
1 OF I. 
1 
: 2 
1 
3 
4 
5 
1 
6 
: 7 
south 
f 
1 
Yellow pond lily. 
Nuphar advena Ait 
south 
f 
1 
1 
south 
r 
c 
north 
1 f 
south 
c 
c 
Loosestrife 
Steironema quadriflorum (Sims.) 
i 
Hitchc 
south 
f 
c 
south 
f 
f 
Meadow-sweet . . . 
Spiraea salicifolia L 
north 
r 
c 
Blue flag 
Iris versicolor L 
south 
c 
c 
r 
1 
Slender sedge 
Carex filiformis L 
south 
c 
f 
r 
Pitcher plant 
Sarracenia purpurea L 
north 
c 
f 
Marsh five-finger. . 
Potentilla palustris (L.) Scop 
north 
1 
1 r 
c 
r 
Sphagnum moss. . . 
Sphagnum 
north 
c 
c 
r 
Cranberry 
Oxycoccus oxycoccus (L.) MacM 
north 
c 
r 
Labrador tea, . 
Ledu?n groenlandicum CEder 
north 
1 
f 
1 f 
Swamp laurel. 
Kalmia glauca Ait 
north 
1 
f 
f 
Cassandra 
Chamaedaphnecalyculata{\^.)^oench. 
north 
1 
c 
c 
r 
Alder 
Alnus incana (L.) Willd 
north 
f 
r 
r 
i 
Tamarack 
Larix laricina (Du Roi) Koch 
north 
r 
c 
f 
i 1 
Black spruce 
Picea mariana (Mill.) B. S. P 
north 
i 
r 
c 
f 
Canada blueberry. 
Vaccinium canadense Richards 
east 
f 
f 
Mountain ash. 
Sorbus americana Marsh 
east j 
1 
r 
c 
White spruce ; 
Picea canadensis (Mill.) B. S. P 
north 
r 
f 
1 
Dwarf cornel ^ 
Cornus canadensis L 
north 
i 
f 
c 
f 
.Tack pine .... 1 
Pinus divaricata (Ait.) Sudw 
north 
r 
f 
c 
Yellow clintonia... 
Clintonia borealis (Ait.) Raf 
east 
c 
Whit“ cedar ‘ 
Thuja occidentalis L 
east I 
b 
i 
Hemlock 
Tsuga canadensis (L.) Carr 
east 
i 
Mountain maple.. .' 
Acer spicatum Lam 
east 
i 
f 
Bals.am fir i 
\bies balsamea (L.) Mill 
east 
1 
r 
Mountain holly.. . 
Nemopanthus mucronata (L.) Tre- 
lease 
east 
r 
Hard maple . . 
Acer saccharum Marsh 
east 
c 
f 
Norway pine . . . 
Pinus resinosa Ait 
east 
f 
c 
White pine 
Pinus strobus L 
east 
r 
f 
Trailing arbutus.. . 
Epigaea repens L 
east 
r 
c 
Wintergreen 
Gaultheria procumbens L 
east 
r 
i 
c 
Juneberrv 
Amelanchier canadensis T. & G 
east 
f 
c 
r 
Pin cherry. 
Prunus pennsylvanica L 
east 
r 
c 
r 
Choke cherry 
Prunus virginiana L 
south 
f 
