68 



CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, 



KLICKITAT COUNTY. 



A considerable number of species reach their northernmost exten- 

 sion in Klickitat County or in adjacent Skamania County and are 

 not otherwise known to occur in Washington. In some cases a long 

 distance to the southward intervenes before the species again occurs. 

 This local northern distribution is j^erhaps due to the association of 

 Humid and Arid Transition conditions and a warm southern slope 

 exposure, the resultant combination being highly peculiar. 



The species to which the above remarks apply are: 



Juncus uncialis. 

 Lepidiiim nitidnm. 

 Melica fug ax. 

 Mimulus doiiglasii. 

 'Neinopliila sepnita. 

 Orogeiiia linearifolia. 

 Panicum 1i irtica iiloit. 



Arnica cradiata. 

 Az(j}la caroUniaiia. 

 Bromiis ()rc)ttiia)nis. 

 Ccanoth us prostra t us. 

 Ceanoth us th yrsiflorus. 

 CoUlitski rattaiii. 

 CoUinsia sparsiflora. 

 Cijuof/lossinn. (jrandc. 

 Cijpripcd i u 1)1 fascicu latu m. 

 EpUohUim ursiii u»i. 

 Eriogonuni nudum. 

 Eryngium pctiolatum. 

 Festuca confusa. 

 Garry a frcmontU. 

 Gilia holanderi. 

 Gilia divaricaia. 

 Tleinicarphii ocridcniaJis. 



Pisr-aria set igcra. 

 Plagiobothrys nothofulvus. 

 Polygonum austUiav. 

 Polygonum grcenci. 

 Scribneria bolandcri. 

 Tonrlla collinsioidcs. 

 7' ri folium ciViolatum. 

 Mburnum clUiiticuiii. 

 Viola shcltoni. 



Some of these species will perhaps l)e found in Washington outside 

 of Klickitat County, but the flora is well enough explored to make it 

 quite certain that this will be the case Avith but few of them. 



MOUNT STUART AND THE WENACHE MOUNTAINS. 



Mount Stuart, a tall granitic peak in Kittitas County, and the sur- 

 rounding Wenache Mountains, have long been of jDeculiar interest 

 botanically, owing to the considerable list of species which are there 

 localized. This peculiar localization of species, several of them with- 

 out close relatives, seems to be in a measure associated with the 

 granitic character of the region. Recent investigations have shown 

 that most of the species occur also to the northward, but that they are 

 confined almost entirely to granitic soils of the crest of the Cascades, 



Among the species thus restricted are the following: 



Delpliiuiuin .raiifJiolciivum. 

 Douglusia dcntata. 

 Erigeron leiberi/ii. 

 Lcptotaoiia icatsoni. 

 Leirisid tireedyi. 

 Pcdicularis ornithorhiiiichii. 

 Poo cunbyi. 



Arahis irhitedii. 

 Cacaliopsis nardosmia glabra t a. 

 Calamagrostis t treed yi. 

 Calochortiis lyaUil. 

 Castilleja elmcri. 

 Cynomarathriiiii hrandegei. 

 Dvlphinium virklescens. 



