138 
Mexico, the collecting was a little disappointing ; still nearly 
four hundred numbers were taken, many of them of flowering 
shrubs that would have been missed later in the season. The 
region will well repay farther and much more extended study. 
At one point near Kent some low limestone ridges were encoun- 
tered and the effect on the vegetation was at once apparent in the 
presence of such lime-loving plants as Fouguiera splendens with its 
flame-tipped thorny branches, species of Hedeoma and Teucrium 
laciniatum, all plants characteristic of the limestone hills in New 
Mexico, but which had not been seen in the Davis Mountains 
proper. Besides herbarium specimens a few living plants, mostly 
cacti, were secured but the quantity was not great, owing to the 
difficulty of transportation. 
I left Barstow on May 7th, going to El Paso where a day was 
spent in collecting cacti for shipment to the garden and in tak- 
ing herbarium material. Notwithstanding the long-continued 
drought the rocky foothills near town furnished an interesting 
variety of plants and more time could have been spent here to 
advantage. From El Paso I went by rail to Cloud Croft, New 
Mexico, at the top of the Sacramento Mountains at an elevation 
of 9,000 feet, reaching there about noon of May oth. Cloud Croft 
is in the aspen-spruce belt and later in the season would furnish 
abundant collecting. At this elevation the season was but little 
advanced and though some interesting things were found the 
number of plants in bloom did not justify a prolonged stay. The 
morning of the roth, I started down the mountain on foot pass- 
ing, successively through the spruce, pine and juniper belts and 
into the mesquite formation near the foot of the mountain, 
securing an interesting series of plants illustrating the spring 
blooming at these different elevations 
The itinery of the journey as planned included a trip of the 
neighboring White Mountains which are some four thousand 
feet higher than the Sacramentos, but the scarcity of bloom at the 
higher altitudes on the Sacramentos indicated that the results so 
early in the season would not justify the time and expense 
necessary for organizing an expedition to reach this higher 
level and this feature was reluctantly abandoned. On the trip 
