70 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
SPECIES COMMON TO THE NORTHERN CASCADES AND THE BLUE MOUNTAINS.@ 
* Angelica canbyi. * Nemophila brevifiora. 
Angelica lyallii. Parnassia fimbriata. 
*Castilleja oreopola. * Pedicularis contorta. 
Claytonia megarrhiza. (Also Polygonum alpinum. 
on Mount Jefferson. ) * Ranunculus suksdorfii. 
* Dodecatheon tetrandrum. Rhododendron albiflorum, 
Frasera speciosa. Rumer paucifolius. 
*Hoorebekia hirta, Sambucus melanocarpu. 
Hoorebekia lyallii. * Silene oregana. 
Lewisia pygmaea. 
SPECIES COMMON TO THE BLUE MOUNTAINS AND THE NORTHERN SIERRAS AND 
KLAMATH REGION.! 
Arenaria aculeata. 
*Asclepias eryptoceras, Oenothera scapoidea. 
*Aster bloomeri. *Pellaea breweri. 
Calochortus eurycarpus. *Phaca bolanderi. 
Carduus ochrocentrus. Physaria newberryi. 
Caulanthus hastatus. Poa bolanderi., 
Cercocarpus ledifolius. *Potentilla breweri. 
Coleosanthus microphyllus. *Salia lemmoni., 
Draba lemmoni. *Sedum debile., 
*Hrigeron austinae. 
*Hrigeron bloomeri. 
Galium bifolium. 
*Gentiana simpler. 
Gilia micromeria. 
Gilia tenerrima. 
Ivesia baileyi, 
*Smelowskia fremontii. 
Sphaerosciadium capitellatwm. 
Thalictrum fendleri. 
*Trifolium beckwithii, 
*Trifolium plummerae. 
SPECIES COMMON TO THE MOUNT STUART REGION, THE BLUE MOUNTAINS, AND THE 
KLAMATH REGION.C¢ 
Agoseris retrorsa. Ivesia gordoni. 
*Arabis lemmoni. Ledum glandulosum. 
*Arabis suffrutescens, Lewisia triphylla. 
Bikukulla uniftora. *Melica fuga. 
*Bromus suksdorfii. Melica stricta. 
Claytonia megarrhiza. 
Cordylanthus capitatus. 
Hricameria nana. 
Hupatorium occidentale. 
*Hoorebekia greenei. 
*Hoorebckia greenei mollis. 
Spiraea densiflora, 
Spraguea umbellata, 
Stipa lemmoni. 
*Veronica cusickii. 
*Viola beckwithii, 
Viola purpurea. 
No especial attempt has been made to determine what species are 
absent from the Blue Mountains which might be expected to occur 
there. It is especially striking, however, that all the forest trees of 
@ Species marked with an asterisk are confined to the above regions. 
+ Species marked with an asterisk are confined to these three regions. 
¢ Species marked with an asterisk are confined to these two regions. 
