40 PLANT LIFE OF ALABAMA. 
hazel, sumac (Rhus), and ash, all of which are widely diffused through- 
out the temperate zones of eastern North America and in eastern Asia, 
a small 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 genera 
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. : genera. 
Pteridophyta: Dicotyledoneae: 
PENT COS ood asain asaya eel eueiehnauree bes 6 Archichlamydeae— 
1 Leguminosae2..............2...- 9 
1 Ranunculaceae .. 8 
Rosaceae? ........ 8 
Apiaceae ........... 5 
Betulaceae ......... 5 
Gymmnospermae: Fagaceae......... 3 
Pinoideae : Urticaceae ....... 3 
Cupressineae s Euphorbiaceae . 3 
Vitaceae ....... 3 
DO ta eectaeersereiepy 8 atone sigvapsipisis eae Nymphaeaceae. 3 
Aristolochiaceae 2 
Monocotyledoneae: Ulmacene ...... 2 
TAA C ORC? ois ssecesratcinectnnnuewniatetenransss 10 Moraceae....... 2 
Orchidaceae . 6 Magnoliaceae .. 2 
Cyperaceae . 4 Berberidaceae. . 2 
Araceae... 3 Fumariaceae... 2 
Poaceae ... 2 Rhamnaceae... 2 
Najadaceae . 1 Lauraceae...... 1 
Alismaceae .... 1 Juglandaceae .. 1 
Dioscoreaceae. . 1 Salicaceae...... 1 
Smilaceae.... wes 1 Myricaceae..... apes 1 
DEAD AE a asccis ctrsersinudomivnnenion viacaswaess 1 Polygonaceae ...........-..2..2. 1 
———— Phytolaceaceae .........2....... 1 
FOCAL seaptecre cota corse Stare tered 30 Menispermaceae ..........-..... 1 
=== Crassulacese ........222.22..000. 1 
Mneluding Polypodiaccae, Hymenuphyllaceae, and Osmundaceae. 2 Here used in the broader sense. 
