110 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM, ° 
During the winter of 1910-11 both writers gave most of their time 
to the completion of the report upon the flora of New Mexico, the 
work being carried on at the National Herbarium. Here are found 
nearly all the larger collections made in the State from the earliest 
times, the only important exceptions being those of the James, Wis- 
lizenus, and Emory expeditions. The National Herbarium includes 
the larger sets of Fendler, Wright, Bigelow, Newberry, Heller, Earle, 
Skehan, and Metcalfe, besides many smaller ones, prominent among 
the last being one by Dr. E. A. Mearns and another of several hun. 
dred numbers gathered by members of the Biological Survey in con- 
nection with their field work in the State. More important than 
these collections, at least for the purposes of determining distribu- 
tion, are those secured by the writers themselves, embracing several 
thousands of specimens from almost every part of the State. During 
the summer of 1911, besides, a careful examination was made of all 
the New Mexican material in the herbarium of the Agricultural 
College, resulting in the addition of many other species to our lists. 
The latter herbarium contains all the more recent sets of New Mexi- 
can plants, besides specimens of nearly all collections made by the 
writers. In addition, there are hundreds of smaller collections to be 
found nowhere else, not having been made in duplicate. Such are 
those of Prof. T. D. A. Cockerell, Dr. C. L. Herrick, Mrs. W. T. 
Bartlett, Miss Charlotte Ellis, Messrs. Maltby and Coghill, and many 
others who have forwarded their specimens to the Agricultural Col- 
lege for identification. 
As a result of our study of this rather ample material we have com- 
piled a list of the plants of the State, which shows that the flora of 
New Mexico will compare favorably in number of species with that 
of any of the Western States. It is to be remembered that the plant 
life of the State is still imperfectly known, except in certain limited 
localities. Even in those areas which have been fully investigated 
unknown plants are often turning up; and there are extensive ranges 
of mountains and hills, as well as stretches of plains, where little or no 
collecting has been done. For example, the Jemez Range, one of the 
largest in the State, has never been visited by a botanist. Fewer 
things of interest are to be expected there, however, than in some of 
the regions near the boundaries, particularly on the eastern and 
southern sides. One of the writers in the summer of 1911 collected 
in the northwestern corner of New Mexico and found more than a 
hundred species that had not been known previously from the State. 
Equally productive would be collections made along the southern 
edge of New Mexico, especially in the Guagalupe and San Luis Moun- 
tains and about the south end of the Sacramentos. Along the western 
border there may be expected many Arizona species which have not 
yet been collected in New Mexico. When it is realized that the area 
