66 NORTH AMERICAN FAUNA. 
BIRDS OF HUDSONIAN ZONE—continned. 
(3) Species common to Hudsonian and Canadian zones, 
[Nee p. 63.] 
(4) Species common to Hudsonian and Alpine zones. 
Salpinctes obsoletus.! 
PLANTS OF 
Sialia arctica. 
Stellula calliope. 
HUDSONIAN ZONE, 
(1) Species known to oceur in Hudsonian cone on Shasta. 
Agoseris monticola. 
Allium sp. ——? 
Antennaria media, 
Arabis platysperima. 
Arctostaphylos nevadensis. 
Arnica merriami. 
Arnica viscosa. 
Campanula wilkinsian:. 
Carex breweri. 
Castanopsis sempervirens. 
Castilleja affinis. 
Castilleja miniata (small form). 
Cheiranthus perennis. 
Chrysothamnus bloomeri. 
Crepis intermedin. 
Cyceladenia humilis. 
Cymopterus terebinthinus. 
Epilobium clavatum. 
Epilobium obcordatum. 
Epilobium pringleanuin. 
Erigeron armeri:folium. 
Eriogonum polypodum. 
Eriogonum pyrol.vfolium. 
Hieracium albiflorum (alpine form). 
Hieracium gracile. 
Hieracium horridum. 
Holodiscus discolor. 
Hypericum anagalloides. 
Juncus parryi. 
Juniperus nana. 
Kalmia glanca microphylla. 
Ligusticum grayi. 
Lupinus albifrons. 
Lupinus ‘ornatus.’ 
Lutkea pectinata. 
Machwranthera shastensis. 
Mimulus implexus. 
Mimulus primmuloides. 
Mitella pentandra. 
Monardella odoratissima, 
Oreastrum alpiginnm. 
Oreobroma triphylla. 
Orthocarpns pilosus. 
Parnassia californica. 
Pentstemon glaber utahensis. 
Pentstemon menziesi. 
Pentstemon newberryi. 
Phlox douglasi diffusa, 
PhyNodoce empetriformis. 
Pinus albicaulis. 
Polygonum newberryi. 
Polygonum shastense. 
Potentilla Nabellifolia. 
Potentilla pseudorupestris. 
Puisatilla occidentalis. 
Ribes cereum. 
Sasifraga bryophora. 
Scutellaria nana, 
Sibbaldia procumbens, 
Silene vrayi. 
Sitanion cinereum. 
Spraguea umbellati. 
Stellaria crispa. 
Streptanthus orbiculatius. 
Tsuga mertensiana. 
Vaccinium cwspitosum. 
Veronica cusicki. 
Viola purpurea. 
(2) Species restricted to Hudsonian cone. 
Allinm sp. ——? 
Arnica merriaini. 
Arnica viscosa. 
Castilleja miniata (small form), 
Cycladenia humilis. 
Epilobium clavatum. 
Epiobium obcordatum. 
[No, 16. 
?Castilleja affinis. 
1On Shasta the rock wren is restricted closely to the Alpine aud Hudsonian zones, 
but in other places it occurs much lower down, and was recently found in Shasta 
Valley by W. K. Fisher. 
