56 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 



Shrubs. 



Berheris nervosa. Near Faruiington. 



Cornus occidetitaUs. Near Spokane, Wash. 



Corylus califoruica. Near Kettle Falls. Wash. 



EchinoixiiKi.i- horridinn. 



Gaidthcria oratifolia. Priest Lake. 



Rubiis iiiacroiJClaUis. 



Rubus spcctahiliN. Priest Lake, very rare. 



Herbs. 



Auteunaria lioirrlUi. Cedar Mountain. Spangle, Wash. 



Claytonki parv'ifoUa. Priest Lake; Packsaddle Peak. 



CcAUnsia grandiflora. Troy. 



Colloniid lictcrotihjiUa. Wiessner Peak. 



CoraUorhiza striata. Cedar Mountain. 



Erigeroii -speciosus. 



Fritillaria laiweolata. Farminjiton Landing. Palouse City, Wash. 



Heuchcra cylhidrlea. Near Lewiston. 



Eosackia Jjicolor. 



Hotcellia aqiiatilis. Lake Teseniini. 



Liliiirii parviftoruw. Lake Pend Oreille. 



Maiauthemnm bifolium kamtschaticiim. Priest Lake. 



Micrainpclis orcgaiw. T'niatilla River, Oreg. Kettle Falls, Wash. 



Mitelht caulescois. Faruiington Landing. 



Pol [/(/oil um lji.'<tortoidcs. Near Moscow. 



Poli/stichiiiii iiiiiiiituin. Cedar Mountain. Also in Blue Mountains. 



Psoralea physodcs. One station near Troy. 



Saxifraga oregana. Priest Lake. 



SteiiaiitJiium occidentale. Priest Lake. '' 



Trieiitalis latifolia. Wiessner Peak. Blue Mountains. Wash. 



Vaccinium ovaJifoIiinii. Priest Lake. 



In this connection the fact may also be pointed out that in several 

 cases the species of the coast region are replaced in Idaho by very 

 close allies. This fact is illustrated by the following pairs: 



Coast region of Washington : Northern Idaho : 



AIiiKS oregana. Aliias teiiidfolia. 



Philadelphus: gordoiiiaiiiis. PhiladelphuK leirisii. 



Potent itia graeiViK. Potent ilia hhixehkeana. 



Raniineiilii!^ orthorhynchus. Raniiiiciitiis platyphyUus. 



Rihex dirarieatidii. Ribes irrigiiuin. 



Salix Ja.^iandra. Salix lancifolia. 



Sambucus eaUiearpa. Sambucus melanoearpa. 



Spiraea doiiglasii. Spiraea menziesii. 



Viola sempervirens. Viola orbieiilata. 



Perhaps the most significant of the above lists is that of the species 

 which are now so rare in Idaho, but abundant in western Washington. 

 These species must be either relatively newcomers, just obtaining a 

 foothold, or else old inhabitants, now on the verge of extinction, so 

 far as this immediate region is concerned. The latter hypothesis 



