’ 
Harshberger, North America. 
as 
Map showing 
the Distribution of Plants 
and 
the Phytogeographic Areas, 
Districts and Regions of 
North Bir 
developed and executed b 
Professor John W. kerger, Ph.D. 
University of Pennsylvania, Philadelphia. 
- 1:.40000.000 \ 
0 0 1500 
am 
Are zone, Be and associated for- 
ma 
Subarctic zone udsonian), Labrador, 
ke Ben Alaska dis 
x ; coniferous 
Lake de com- 
zum ©. Bo aus a and lake dis- 
RE ran a 
ons Tempera n, pet 
"lack Halle and mountains of 
7] Appalachian Mount Mountain district with its 
F 
ciduo 
Bar n region < Comprisin the Puget 
BER und-Cascade Range district and 
Fan Yenisz Olympic distri 
Alleghanian - Ozark district, including 
Fan ring area and Kentucky-Tennes- 
California Coast Range district, com- 
ie ee, Mendocino and Santa 
uci 
le 2. Nevada district, 
Bi San Bernardino district, including the 
mainland and insular areas. 
FR Ozark area of th 
district. 
SS Atlantic-Gulf Coastal region, with the 
pine barr er vegetation. 
Eastern Sierra Madre region of Mexico, 
Western Sierra Madre region of Mexico. 
United Cordilleran region of Mexico. 
Tropic Forests. 
Forest Regions of North America, exclusive of the 
e Alleghanian-Ozark 
Shades of Green: 
f Bi Biatdl-Ocat Plains region. 
ss timber and coast plain bei 
Sc Ort eng live oak with prairies sand 
wiched betwee: 
Transition Prairie-Forest district, com 
ire the oak openings. 
ards Plateau forest, meeting groun 
for ee hu „ARaaee, Er. ROCRY Moe 
san 3 an Er ae gr Great Valley 
Er Fat t Basin region including the Oregon) 
Aeding and Mohave deserts. 
Desertregionin Beyes MeRlnı 
ds southwestern United States 
R I Chihwahuar Desert region of ae 
Sn Jaliscan region of western Mexico, 
N] 
RR 
Shades of Yellow and Brown: Norih 
and Tropic Regions of North America. American Prairies, Plains and Deserts, 
e Bahaman region. 
65554 Si region. 
ar on of the Mexican phytogeo- 
€ province, 
American province; Guatemalar) 
En 
er American province; Costa Rican 
West Indian province; Antillean region. 
Eee peaks of Mexico and Central 
America described in this book. 
Shades of Rose and Purple: Subtropic 
\ en insular phytogeographic areas 
2 S ee limit of larch, Larix americana. 
Northern limit of Populus balsamifera. 
SAkahhH Ak ae bo soßern Ihm Betula pa- 
#444 ++ +++ NO Fe f balsam, Abi 
Nort of white 
RE | 
00000000000 Limit Reggae 
AM AMAM ger 
‚m Northern limit of the us 
[Taxodium distichum, 
===-====-=- Southern limit in Florida of baldcypress, 
ndaries of North American pi 
Em m [nolia glauca. 
wamp olia, Mag- 
A RRAR of loblolly A ren nus taeda. 
aux Linie 2 Er leaf pine, us palustris. 
20423338 men t e rent a. rn 
a ee ee hen 
en ve, phora 
ee angle at Bermuda, mager, Mexico, 
HHHHHHHHH Northwest limit of true Pacific coast forest. 
LLLiLtLttL Northern limit of golden leaf chinquapin, 
Castanopsis asil. 
xxx. Northern limit of red fir, Pseud mpg 
Northern limit Pacific 
EEESE, Nenn leftgufsePndogr ae Pina. eye 
ern 
Beer sented by P; and P. Salicifolla, 
P. angustifolia aristulata. 
F.A.Brockhaus' Geogr-artist. Anstalt, Leipzig. 
Verlag von Wilhelm Engelmann in Leipzig. 
