288 



NORTH AMKRICAN FAUNA. 



[No. 7. 



only approximate, because of the .scarcity of base stations of known 

 elevation. All altitudes arc recorded in meters, and equivalents in 

 English feet are given in parentheses. These equivalents are stated 

 in round numbers to avoid the appearance of a degree of precision 

 unwarranted by the altitudes themselves. While in some instances 

 the absolute altitudes are doubtless considerably in error, their rela- 

 tive values are not impaired, for they still serve to show the vertical 

 extent of the belts occupied by the various species and the elevation 

 in respect to fixed points. 



For aid in the determination of species I am indebted to my assist- 

 ant, Mr. Vernon Bailey, Avho was with me in the field, and to Mr. P. V. 

 Coville, botanist of the expedition, who unfortunately was with me 

 only ten days at the end of the trip. Mr. Coville is responsible for the 

 nomenclature and sequence of genera here adopted. 



LIST OF TREES AND SHRUBS. 



Berberis fremonti. 

 Arctomecon calif orn icum, 



merriami. 

 Stan ley aj} innata. 

 Isomcris arborca. 



arborea globosa. 

 Krameria parvifolia. 

 canescens. 

 Malvastrum rotundifolium. 

 Spliceraleea monroana. 

 Fremontodendron calif ornioum. 

 Larrea trideniata. 

 Thamnosma monlana. 

 Mortonia scabrella. 

 Glossapetalon uevadense. 

 spinescens. 

 Bliamnus crocea. 

 Ceandihus fendleri. 



divaricai us. 

 cuneatus. 

 JEsculus calif ornica. 

 Acer n eg undo. 

 Ithits trilobata. 



diversiloba. 

 Dalea polyadenia. 

 fremonti. 

 johnsoni. 

 Bobinia neomexicana. 

 Cassia armata. 

 Cercis occidenlalis. 

 Prosopis juliflora. 



pubescens. 

 Acacia greggii. 

 Primus fasciculata. 



virginiana (or demissa). 

 andersoni. 



Basi lima m i I lefo Hum. 

 Holodiscus discolor. 

 A denostoma fascicu lain »i. 

 Kunzia glandulosa. 

 trideniata. 

 Co leogyne ramosissim a. 

 Cercocarpus ledifolius. 



parvifolius. 

 Cowania mexicana. 

 Fallugia paradoxa. 

 Bosa sp. — f 

 Hcteromeles arbutifolia. 

 Amelanchier alnifolia. 

 Bcraphyllum ramosissimum. 

 Bibes leptanthiim brachyanthum. 



menziesii. 

 Petalonyx parryi. 

 Eucnide urens. 

 Garrya veatchii flavescens. 

 Symphoricarpos longiflorus. 

 Amphiachyris fremoniii. ♦ 

 Acamptopappus sph otocephalus. 

 Aplopappus monactis. 

 Bigelovia douglassi. 



graveolens. 



teretifolia. 

 Baccharis glutinosa. 

 Bluchea sericea. 

 Uymenoclea salsola. 

 Franseria duviosa. 



eriocentra. 

 Encelia frutescens. 

 Artemisia trideniata. 



spinescens. 



arbuscula. 



filifolia. 



