1885.] PROCEEDINGS OF UNITED STATES NATIONAL MUSEUM. 213 



The above table of comparative measurements shows that A. hicolor 

 has, iu comparison with A. copciamon, a longer and still broader head; 

 in spite of this a distance from the axilla to the groin greater than 

 that from the snout to the axilla, a much shorter i^elvic region and 

 shorter fore and hind limbs. 



Found at Irvington, near ludianapolis, April 7, 1885, by one of my 

 students, Mr. George H. Clarke. 



The species is dedicated to Prof. E. D. Cope, herpetologist and palse- 

 ontologist. It is represented on Plate XIV of this volume. 



IrvinGtTON, Indiana, May 5, 1885. 



LIST OF PLANTS COLLECTED BY MR. CHARLES L. McKAY AT 

 NUSHAGAK, ALASKA, IN 1881, FOR THE UNITED STATES NA- 

 TIONAL MUSEUM. 



By FRANK ». KIVO%VI.TOIV. 



The plants enumerated in the following list were collected during the 

 spring and summer of 1881 by Mr. Charles L. McKay, of the United 

 States Signal Service, stationed at Nushagak, Fort Alexander, Alaska. 

 The collection, although small in point of numbers, contains several 

 species of extreme interest, and adds also a few to the flora of Alaska. 

 ]!:^othing like an exhaustive collection was made, owing, of course, to 

 lack of sufficient time, and we remark the absence of many well-known 

 generr, e. g., Draba, iSaxifraya, Aster, &c. 



In passing it is a pleasure, as well as an act of justice, to record the 

 highly satisfactory manner in which this collection was made, a fact 

 quite at variance with the generality of such itinerant collecting. The 

 greatest care was taken to fully represent every species, which, as in 

 the case of the species of ^alix, often necessitated visiting the same 

 locality several times. It is to be regretted deeply that science lost by 

 the untimely death of Mr. McKay (he was drowned by the unfortunate 

 overturning of his boat, on April 19, 1882), one so well fitted to do 

 thorough work. 



I wish to acknowledge my great indebtedness in the preparation of 

 this list to Prof. Lester F. Ward, of the Kational Museum; Dr. George 

 Vasey, of the Department of Agriculture ; and Mr, M. S. Bebb, of Eock- 

 ford,'lll. 



In the arrangement of families and genera, Bentham and Hooker's 

 " Genera Plantarum " has been exclusively followed. In the arrange- 

 ment of species, the various publications of Dr. Asa Gray have been 

 followed where available. 



