40 PLANT LIFE OF ALABAMA. 
hazel, sumac (Rhus), and ash, allof which are widely diffused through- 
out the temperate zones of eastern North America and in eastern Asia, 
a sinall number extending westward to the Altai Mountains and Hima- 
layan India. The number of arboreal and frutescent genera is still 
further increased by those chiefly confined to the southeastern section 
of our continent, such as Magnolia and Illicium of the magnolia 
family; Persea and Benzoin of the laurel family: roses, honey locust, 
storax bushes, catalpa trees, and devil wood or American olive, of 
different families. 
On closer comparison of the flora of Alabama with that of eastern 
Asia and principally of Japan, it is found that about 160 genera or 
nearly 26 per cent of the genera indigenous in Alabama, belonging to 
66 families, have their representatives in eastern Asia. Besides the 
above common genera there occur others in those parts which in their 
essential characters differ but slightly from the nearest allies found in 
Alabama, forming with them such pairs as Glaucidium and Hydrastis, 
Sphaerostemon and Schizandra, Stephanandra and Neviusia, Cory- 
lopsis and Fothergilla, Paris and Modiola, Scilla and Quamasia, Rox- 
burghia and Croomia, and some others. 
The number of types indigenous to Alabama which are identical 
with species found in eastern Asia is small, amounting scarcely to 
forty. Though this number by itself considered is insignificant, it 
must be viewed together with the fact that every one of the gener: 
common to Alabama and eastern Asia is represented in the latter 
region by one or several species closely allied to the forms found in 
Alabama, so closely in not a few cases as to be difficult to separate. 
The relation of these two floras is expressed in the following table: 
Genera common to the flora of eastern Asia and that of Alabama, 
Number | Number 
Classification, of Classification. | of 
genera. 1 | genera, 
Pteridophyta: Dicotyledoneae: | 
Filicest oe eee 6 | Archichlamydeac— | 
Ophioglossacenc . 2.20. 0000 000000222 1), Leguminosae ?......22...0.....-. 9 
Lycopodiacene .......22022..002.. ceeee 1 | Ranunculaceae ...............-. | 8 
—— | Rosaceae? .. 2.2... 2 eee | 8 
Total... 2.0202 eee 8 Apmecte obec eee eee eee eee eee | 5 
== |} Betulaceae .........20200.0.0..-.. | 5 
Gymmospermle: | Fagaceae ee eee ee eee eee eee eee eee | 3 
Pinoideae ...2......2...020200002222.. | 2 Irticaceae 2.0.2.0 .2 2222222. 3 
Cupressineae.......0...2.55000000.22. 2 Euphorbiaceae .........222...... | 3 
—--— Vituceae 2200222. 3 
Total. ........0.2.00002-0.00022.0200022. 4 | Nymphaeaceae....2......220-... 3 
M tyled —=——= | pristolochinceae wee e cece eee ee 2 
onocotyledoneae: | maceae ....22..22222.00.. re ‘ 
Liliavene?, ‘ wee eee eee cece cece eens 10 Moraceae weet eee eee eee eee ee | 2 
Orchidaceae ...... wee eee ee eee eee 6 Magnoliaceae .2...0.022222.0.... | 2 
Cyperaceae 22.22.00... 22220 .22 202000. 4 Berberidaceae...........2..0.... 2 
ATACERE . 2.2. eee 3 Fumuariacease...........20..2--.. 2 
Poaceae . 2.2... 222220-0-0--- 0000 2 | Rhamnaceae 2.222022... | 2 
Najadaceae ......000.0000.000.0000200... 1 Lauraceae.........2......2... _ 1 
Alismacese eee eee eee eee . 1 |) Juglandaceae ....02...0022.2.... 1 
Dioscoreaceae 1 | Salicaceae.......2.....20222200.. it 
Smilaceae..........0..000022 20. e ee eee | 1) Myricaceae.....2..0.0220..22.--.. 1 
Tridaceae ......... 220. ee ee eee ee eee, 1 Polygonaceae ..............----. i 
— Phytolaceaceae .....2.0.200..2... | 1 
Total. ....2..2.222002-22-.020-000 002. 30 Menispermaceae ....22.....2.-.. | 1 
——— Crassulaceae ...... eee eee eens 1 
Mneluding Polypodiaceae, Hymenophyllaeeac, and Osmundaceae. 2 Here used in the broader sense. 
