MAMMALS OF THE MEXICAN BOUNDARY. 



91 



Juniperus pachyphloea Torrey. 



Yucca brevifolia Torrey. 



Y neat constricta Bucklej . 



Juglans rupestris Engelmann. 



Salix nigra Marshall. 



Salix occidentalis longipes (Anders- 

 son ) Bebb. 



Populus fremontii Watson. 



Quercus gambelii Nuttall. 



Quercus ol)longifolia Torrey. 



Quercus arizoniea Sargent. 



Quercus reticulata Humboldt and 

 Bonpland. 



Quercus emoryi Torrey. 



Quercus chrysolepis Liebmann. 



Quercus hypoleuca Engelmann. 



Celtis occidentalis Linnaeus. 



Moms celtidifolia Humboldt, Bon] 

 land, and Knntli. 



Platanus wrightii Watson, 



Cercocarpus parvifolius paucidentatus 

 Waist hi. 



Prunus salicifolia Humboldt, Bonp- 

 land, .'iid Knntli. 



Prosopis glandulosa Torrey. 



Ro-binia neomexicana Gray. 



leer saccharum grandidentatum (Nut- 

 tall) Sargent 



Rhanvnus purshiana de Candolle. 



Arbutus arizoniea (Gray) Sargent. 



Vrctostaphylos pungens Humboldt, 

 Bonpland, and Knntli. 



Fraxinus velutina Torrey. 



Most prominent of the shrubs and large plants are the following: 



Yucca baccata Torrey. 

 Yucca glauca Nuttall. 

 Nolina texana Watson. 

 Nolina lindheimeriana (Scheele) Wat- 

 son. 

 Dasylirion wheeleri Watson. 

 Agave palmeri Engelmann. 

 Berberis wilcoxii Kearney. 

 Holodiscus dumosus (Nuttall) Heller. 

 Whipplea utahensis Watson. 

 Ribes viscosissimum Pursh. 

 Rhus toxicodendron Linnaeus. 

 Rhus trilobata Nuttall. 

 Rhamnus californica Eschscholtz. 

 Vitis arizoniea Engelmann. 

 Opuntia lindheimeri Engelmann. 



Rubus deliciosus neomexicanus (Gray) 



Kearney. 

 Fallugia paradoxa (D.Don) Endlicher. 

 Mimosa biuncifera Bentham. 

 Mimosa grahami Cray. 

 Mimosa dysocarpa Bentham. 

 Acacia filiculoides (Cavanilles) Trel- 



ease. 

 Erythrina flabelliformis Kearney. 

 Ptelea baldwinii Torrey and Cray. 

 Opuntia arborescens Engelmann. 

 Garrya wrightii Gr ly. 

 Symphoricarpos oreophilus Gray. 

 Lonicera ciliosa (Pursh) Poiret. 

 Baccharis glutinosa Persoon. 



The Animas (meaning spirit) Range is a continuation of the San 

 Luis Mountains, which, in turn, is connected with the Sierra Madre 

 of Mexico. It lies wholly in New Mexico, the greater portion as well 

 as all of the other higher peaks of the San Luis Mountains being in 

 old Mexico. These two ranges are barely separated where the wagon 

 road ]ia>ses between them through San Luis Puss. The highest point 

 of the pass is L22 meters ( 100 feet) higher than the Animas Valley at 

 Monument No. 66 (aneroid readings two hour- apart). giving it the 

 altitude of L ,699 meters (5,574 feet). The trees of the Animas Moun- 

 tains are the same as those of the San Luis Range, with the addition 

 of a /.one of aspen (Popu7-as tremuloides Michauxf at the top. The 

 main Animas Peak is a more evenly rounded conical or mound-like 

 eminence than any of the peak- of the San Luis Range, and as a result 

 of this the forest zones are better defined. The northeast side ha- the 



