MAMMALS OF TH;E MEXICAN BOUNDAKY. 



103 



Major Wilcox in the Huachuca Mountains,'^ leave little to be desired 

 more than to separate the trees, as follows : 



Piniis strobiformis Engelmann. 



P'inus cembroidcs Zuccarinl. 



Pinus arlzonica Engelmann. 



Pinus ponderosa scopulorum S. Wat- 

 son. 



Pinus mayriana Sudworth. 



Finns chihualiuana Engelmann. 



Pseudotsuga mucronatu (Rafinesque) 

 Sudworth. 



Juniperus monosperma (Engelmann) 

 Sargent. 



Juniperus pachyphlcea Torrey. 



Yucca constricta Buckley. 



Juglans rupestris Engelmann. 



8aKx nigra Marshall. 



Salix ocidentalis longipes (Anders- 

 son) Bebb. 



Salix lasiolepis Bentham. 



Salix taxifoUa Humboldt, Bonpland, 

 and Kunth. 



Populus tremuloides Michaux. 



Populus fremontii Watson. 



Quercus ganibelii Nuttall. 



Quercus undulata Torrey. 



Quercus oMongifolia Torrey. 



Quercus arizonica Sargent. 



Quercus reticulata Humboldt and Bon- 

 pland. 



Quercus emoryi Torrey. 



Quercus chrpsolepis Liebmann. 



Quercus hypoleuca Engelmann. 



Geltis occidentalis Linnaeus. 



Celtis reticulata Torrey. 



Morus celtidifolia Humboldt, Bon- 

 pland, and Kunth. 



Platanus wrightii Watson. 



Cercocarpus ireviflorus Gray. 



Cercocarpus parvifolius pauoidenta- 

 tus Watson. 



Prunus salicifolia Humboldt, Bon- 

 pland, and Kunth. 



Acacia greggii Gray. 



Acacia constricta Bentham. 



Prosopis glandulosa Torrey. 



RoMnia neomexicana Gray. 



Ptelea trifoliata Linnaeus. 



Acer saccharum grandldentatum (Nut- 

 tall) Sudworth. 



Acer negundo Linnaeus. 



Sapindus marginatus Willdenow. 



Arbutus arizonica (Gray) Sargent. 



Arctostaphylos pungens Humboldt, 

 Bonpland, and Kunth. 



Rhamnus purshianus de Candolle. 



Fraxinus cuspidata Torrey. 



Fraxinus velutina Torrey. 



Chilopsis linearis (Cavanilles) Sweet. 



Sambucus mexicana Presl. 



Fauna of Huachuca Mountains. — Many field naturalists have 

 visited this beautiful mountain range, but it continues to yield rare 

 and novel forms of animal life whenever explored. Unfortunately, 

 Mr. Holzner reached the Huachucas (July 24) after the breeding- 

 season of birds was over, and in a year of phenomenal dryness, when 

 old pine trees died of drought, and birds were obliged to forsake 

 their usual haunts on account of lack of water to drink. This 

 likewise operated to increase the difficulty of finding land-shells, 

 although the moUuscari fauna is rich. Mr. Holzner obtained a 

 new rabbit {Lepus floridanus holzneri) and a new pocket-gopher 

 {Thomomys fulvus intermedius) from the aspen, zone at the top; 

 and his collections contain fine series of several rare animals. Of 

 batrachians, only a toad, tree-frog, and a frog {Rana virescens 

 brachycephala Cope) were observed. Principally through the exer- 

 tions of Maj. Timothy E. Wilcox and, to a less extent, those of Drs. 



oTrans. N. Y. Acad. Sci., XIV, pp. 21-44, issued October 22, 1894. 



