170 



ESS A YS. 



to North America and temperate Asia ; and sixty-three (i. e., 

 more than three quarters) of these are not met with in western 

 North America. 



This table may be compared, or rather contrasted, with the fol- 

 lowing one. 



Extra-European Plants of Temperate Eastern Asia which are rep- 

 resented IDENTICALLY OR BY SOME NEAR RELATIVE IN OREGON (SOUTH 



of Lat. 48°) or California (Arctic-alpine Plants excluded), but 

 not in the Atlantic United States : — 



Thalictrum sparsiflorum. 

 Ranunculus affinis. 

 Coptis occidentalis. 



" brachypetala and Teeta. 

 Aconitum delphinifolium. 

 Poeonia spp. 

 Berberis § Mahonia spp. 

 Epimedium § Aceranthus sp. 

 Achlys Japonica. 

 Corydalis paeoniaefolia. 

 Moehringia umbrosa. 

 Linuin perenne. 

 Thermopsis fabacea. 

 Astragalus adsurgens. 

 Chamaerhodos erecta. 

 Spiraea callosa. 

 Rubus spectabilis. 

 Pyrus rivularis ? 

 Crataegus sanguinea. 

 Rosa Karntschatica. 

 Photinia arbutifolia. 

 Saxifraga Sibirica. 

 Mitella § Mitellaria spp. 

 Glebnia littoralis. 

 Oplopanax horrida. 

 Echenais carlinoides. 

 Lonicera Maximovviczii. 

 Gaultheria adenothrix. 

 Rhododendron ovatum and semibarba- 



tum. 

 Pyrola subaphylla. 

 Villarsia Crista-Galli. 

 Lycopus lucidus. 

 Boschniakia glabra. 

 Echinospermum patulum. 



4 ' Redowskii. 



Hottuynia cordata. 

 Quercus spp. 

 Castanopsis spp. 

 Lysichiton Camtschatcense. 

 Erythronium grandiflorum. 

 Carex macrocephala. 

 Triticum aegilopoides. 

 Elymus Sibiricus. 

 Abies Menziesii. 

 Woodwardia radicans. 



Thalictrum sparsiflorum. 

 Ranunculus affinis. 

 Coptis occidentalis. 

 " asplenifolia. 

 Aconitum delphinifolium. 

 (Pceonia Rossii.) 

 (Berberis § Mahonia spp. 

 Vancouveria hexandra. 

 Achlys triphylla. 

 Corydalis paeoniaefolia. 

 Moehringia macrophylla. 

 Linum perenne. 

 Thermopsis fabacea. 

 Astragalus adsurgens. 

 Chamaerhodos erecta. 

 Spiraea Nobleana. 

 Rubus spectabilis. 

 Pyrus rivularis. 

 Crataegus Douglasii. 

 Rosa Karntschatica. 

 (Photinia serrulata.) 

 Saxifraga Sibirica. 

 (Mitella § Mitellaria spp.) 

 Glehnia littoralis. 

 Oplopanax horrida. 

 Echenais carlinoides. 

 Lonicera Breweri. 

 Gaultheria Myrsinites. 

 Rhododendron albiflorum. 



Pyrola aphylla. 

 Villarsia Crista-Galli. 

 Lycopus lucidus. 

 Boschniakia glabra. 

 Echinospermum patulum. 



" Redowskii. 



Anemiopsis Californica. 

 (Quercus densiflora.) 

 (Castanopsis chrysophylla.) 

 Lysichiton Camtchatcense. 

 Erythronium grandiflorum. 

 Carex macrocephala. 

 Triticum apgilopoides. 

 Elymus Sibiricus. 

 Abies Menziesii. 

 Woodwardia radicans. 



The entries are only forty-five ; and the representation, when at 

 all close, is by identical or nearly identical species. Only seven of 

 the genera here noted are peculiar to northeastern Asia and north- 

 western America : namely, Glehnia, Oplopanax, and Lysichiton, 

 each of a single species common to both coasts ; Achlys, of which 

 there is a Japanese species said to differ from the American ; Bosch- 



