VOL. XV, PP. 177-179 AUGUST 6, 1902 



PROCEEDINGS 



OF THE 



BIOLOGICAL SOCIETY OF WASHINGTON 



FOUR NEW PLANTS FROM NEW MEXICO.* 

 BY CHARLES LOUIS POLLARD AND T. D. A. COCKERELL. 



The mountain ranges of New Mexico, numerous and largely 

 isolated as they are, offer unusually favorable conditions for the 

 development of local types of plants and animals. Only a few 

 of these ranges have been explored for plants with any 

 degree of thoroughness, and even these are still yielding novel 

 ties whenever visited. The Sandia Mountains, within sight of 

 Albuquerque, were visited long ago by Bigelow, but have since 

 then been strangely neglected. Miss C. Ellis recently obtained 

 a small series of plants in these mountains, and we find among 

 them such conspicuous novelties as the Primula and Achillea 

 herewith described. The Las Vegas Range, being really con 

 tinuous to the north with the mountains of Colorado, would not 

 be expected to have a peculiar flora; but as a matter of fact 

 many of the plants are quite different from their congeners in 

 Colorado. This statement is made with some degree of con 

 fidence, because the difference is seen in many conspicuous mem 

 bers of the flora, and is not easily overlooked; moreover, the 

 junior writer of this paper spent three years at the foot of the 

 Sangre de Cristo mountains in Colorado, and became familiar 

 with the plants of that region. 



^Published here by permission of the Secretary of the Smithsonian In 

 stitution. 



34-BiOL. Soc. WASH. VOL. XV, 1802. (177) 



