40 Proceedings of tJie Columbus Horticultural Society. 



forms and types which we count as peculiar to our Atlantic 

 region, when we compare them as we first naturally do, with 

 P2urope and our west, have their close counterparts in Japan 

 and North China ; some in identical species (especially among 

 herbs) often in strikingly similar ones, not rarely as sole 

 species of peculiar genera or related generic types. Evidences 

 of this remarkable relationship have multiplied year after 

 year, until what was long a wonder has come to be so common 

 that I should now not be greatly surprised if a Sarracenia or a 

 Dioneta, or their like, should turn up in Eastern Asia. Very 

 few of such isolated types remain without counterparts. It is, 

 as if Nature when she had enough species of a genus to go 

 around, dealt them fairly, one at least to each quarter of our 

 zone ; but when she had only two of some peculiar kind, gave 

 one to us and the other to Japan, Manchuria or the Himalayas ; 

 when she had only one, divided this between the two partners 

 on the opposite sides of the table." 



As a more complete illustration of this relationship we give 

 the following table extracted from the appendix of Dr. Gray's 

 Dubuque address (IV) and from his paper On the Botany of 

 Japan. It is supplemented by a list of species occurring ih 

 Ohio, Asia and Japan and also found in Europe. 



LIST OF EXTRA-EUROPEAN PLANTS OCCURRING IN OHIO AND IN 



NORTHEASTERN ASIA, REPRESENTED BY IDENTICAL 



OR STRICTLY REPRESENTATIVE SPECIES. 



1. /;/ Ohio. 



Lycopodium lucidulum, 

 Lycopodium dendroideum (L. ob 



scurum L.), 

 Adiantum pedatum, 

 Asplenium acrostichoides, 

 Camptosorub rhizophyllus, 

 Onoclea sensibilia, 

 Osniunda cinnamomea, 

 Osmunda Clavtoniana, 

 Botrychium Vir^inicum, 

 Thuja occidentalis, 

 Tsuga Canadensis, 

 Pinus Strobus, 

 Taxus minor, 

 Avena striata, 

 Zizania aquatica, 

 Carex stipata, 

 Eriophorum cyperinum, 

 Abama Americana, 

 Erythronium Americanum and 



Albidum, 



2. In Northeastern Asia — jfapa^i 

 to Altai Mo7i?iiains. 



Lycopodium lucidulum, 

 Lycopodium dendroidt^um, 



Adiantum pedatum, 

 Asplenium acrostichoides, 

 Camptosorus Sibiricus, 

 Onoclea sensibilis, 

 Osmunda cinnamomea, 

 Osmunda Claytoniana, 

 Botrychium Virginicum, 

 Thuja Japonica, 

 Tsuga Tsuga, etc., 

 Pinus excelsa, 

 Taxus cuspidata, 

 Avena callosa, 



Zizania=Hydrophyrum latifolium, 

 Carex stipata, 

 Eriophorum cyperinum, 

 Abama Asiatica, 

 Erythronium grandiflorum, 



