OCT., 1899.] SIERRA-CASCADE SPECIES NOT KNOWN FROM SHASTA. 7'J 



HUDSONIAX-ALPINE SPECIES OF SHASTA AND SIERRA— Coutinued. 

 PLANT.S — continued. 



Eriogoniini polypodnm. 



Hieracium albilloniin (alpine form). 



Hieraciuni horridum. 



Hul.sea larseni. 



Painassia californica. 



Saxifraga bryopbora. 

 Senecio canus. 

 Streptautluis orbiculatus. 

 Vaccininm o;i'8]iito.suni. 



(9) EXCLUSIVELY HUDSONIAN-ALPINE SPECIES COMMON To SHASTA 

 AND THE CASCADES BUT NOT KNOWN FROM THE SIERRA. 



MAMMALS. 



None. 



lUUD.S. 



Anthiis iiensilvanicus. 



Epilobium clavatnm. 

 Hieracium gracile. 

 Hulsea nana. 

 Lupinus lyalli. 

 Lupiuus ' oriiatus.' 

 Lutkea pectinata. 

 MachiPranthera sba.stensis. 



Oreastrnm alpiginum. 

 Pentstemon nienziesi. 

 Pbyllodoce empetriformis. 

 Polygonum newberryi. 

 Sileue suksdorli. 

 Veronica cusicki. 



BOREAL SPECIES OF THE SIERRA-CASCADES NOT KNOWN FROM 



SHASTA. 



Turning to another phase of the subject, the absentees, or boreal 

 species of the Sierra and Cascades whicli are not known from Shasta, 

 an equally instructive lesson may be learned. 



The boreal species that occur in the Sierra or Cascades, or both, but 

 which are not known from Shasta, have been grouped in three cate- 

 gories: (1) species common to the Sierra-Cascades but not known from 

 Shasta; (2) Sierra si)ecies not known from Shasta or the Cascades; 

 and (3) Cascade species not known from Shasta or the Sierra.' 



(1) Boreal spe(;ies common to the Sierp^a and the Cascades 



BUT NOT KNOWN FROM ShASTA. 



Only three boreal mammals are known to occur in both the Sierra 

 and the Cascades which have not been found on Suasta. These are 

 the Sierra marmot {Arvtomys fJaviventer), the wolverine {GuJo luseus), 

 and the silver-haired bat {Lasiouycteris noetir<igans). The marmot, 

 it maybe stated with confidence, is really absent; the wolverine has 

 been killed in the near vicinity and probably occurs on Shasta; the 

 bat is a local species common in the mountains west of Shasta, easily 

 overlooked and most likely to occur. Hence there is every reason to 



' In tbe accompanying tables and discussion tbe boreal species are treated col- 

 lectively, no account being taken of the important distinctions between tbe Alpine, 

 Hudsonian, and Canadian species. Tins course bas been rendered necessary by the 

 absence of discriminative zone lists of Cascade-Sierra species. 



