CONTENT 
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Introduction .........-------- 2.2222 eee eects 
History of the present botanical exploration of Alabama......-.---- 
Plan of the present work ......---------------e2er errr rc rtttcrrc 
Systematic arrangement ..--..-------+--+-++22r0e rer ttretccte 
Nomenclature......------------ eee eee cece 
History of the earlier botanical explorations of Alabama....-------- 
William Bartram.......-------------- +++ eee cee tre 
Samuel Botsford Buckley ...-.------------+2+-2eec rrr rrr 
Hezekiah Gates .......--------0 22 e eee eet 
Thomas Minott Peters.......---.--------- 2 creer eect r rr 
Beaumont, Nevius, and recent collectors. ...----..-+++--+-++-+++- 
General physiographical features of the State ..-.-----++++++5++5555500 07 
Topography and geology... ..--------+-+++2+20crrrrrrtettrtct 
The Coastal Plain ......--------------- +e reer ttt 
Region of Crystalline Rocks. ...-.----------+-+-++8--2crt etre 
Region of the Coal Measures. ..-.--------+++++2+05crttrrccc 
Region of the Coosa Valley .....---------++-+--250rrrrtrtrtte 
Region of Tennessee Valley... ..-------------+---+20rtrtrcrtrtt 
River system... ....2----- 2-22-2200 2c cree rece cre rc rrr 
Tennessee River......------------ ee cette 
Alabama River........------------- eee ere e ct t 
Tombigbee River. ......-------+--+-----+-crrrerrercrrrrct 
Coosa River_....--2------- 222 cece eet 
Cahaba River and smaller streams. ..-----------+--+++0rrrrrree 
Climate......------------ eee eee eect 
Temperature... ...------ 2-2-2222 e eee reer rt rtcretcrcrr 
Rainfall .....-------------- rr eee 
Winds........--- eee eee cece e eee eee creer crete rsrsrrssst 
Cloudiness ....----------+- +22 eee creer errr rrr 
General principles of the distribution of plants..--------------+++------ 
Plant zones of Humboldt, based on isothermal lines ....------------ 
Life zones established by Merriam. ....----------++----+5errtrrcctte 
Boreal region .....-----2-----e2ee rece erect rrr 
Arctic or Arctic-Alpine zone ..--------------++5errrr ttre 
Hudsonian zone.....--------------eee erect 
Canadian zone .....-----------2 eee rece cere 
Austral region. ..--.-.--------+-22-ce eee eres errr 
Transition zone ...--------+----c seer errr 
Upper Austral zone ...--------+--+-2e2e-r errr rtcrrrcts 
Lower Austral zone ....-------------+-- eee e errr 
Tropical region......------2-+---22erecrcercrrte csr 
Secondary factors influencing plant distribution ....---------------- 
Distribution of species as depending upon geological history .--.----- 
