NOTES ON THE WEST AMERICAN CONIFER. 135 
diameter of 3 to 5 feet, at elevations of 6,000 to 8,000 feet, 
mostly on northern slopes, usually in sheltered cafions, or 
contiguous gravelly plains. The young trees develop robust 
yearling growths ? to 1 inch thick, recalling this remarkable 
character of P. palustris, the long-leaved pines of the 
southern states. The trees when crowded trim themselves, 
affording limbless trunks for lumber purposes, to which use 
the largest bodies of this pine have already been devoted, 
yielding a firm yellowish lumber, not unlike P. ponderosa. 
This species was first detected by Dr. Wislizenus on the 
Cosiquiriachi Mts., west of Chihuahua, and was described 
from a single specimen, by Dr. Engelmann in Wislizenus’ 
Mem., p. 103, note 25, (1848) as Pinus macrophylla, the 
characters given (limited to few data) agreeing fairly well 
with those hereinbefore set forth, except that the cone scales 
are described as “‘tuberculo conico,” without qualification. 
Dr. Engelmann states that “the name was changed by 
Carriére in Traite Conif. (1. ¢.) because it clashed with Lind- 
ley’s prior name,” Specimens collected recently by Mr. 
Pringle have been determined for him under both names— 
which cannot be admitted. 
Dr. Henry Mayr’s pine “ detected in 1889 on the southern 
slope of the Santa Rita Mts., Arizona,” and described by 
Prof. Sargent in Garden and Forest (1. ¢.) I think belongs 
here, despite the strong cone tubercles and the slender 
prickles described and figured. Branchlets and cones col- 
lected recently by Mr. Brandegee at Dr. Mayr’s locality, are 
precisely similar to ours collected in the Chirricahui and 
Huachuca Mountains frequently, during the last dozen years, 
(but hitherto referred to P. ponderosa). 
Trees at the mouth of several cafions of the Chirricahui 
Mts., bore small cones, having few large scales with strong, 
quadrangular, pyramidal umbos, and large deltoid prickles. 
We found, as we passed into the forest, that these characters 
graded into larger and longer cones with smaller scales, less 
elevated apophyses, etc., etc. 
One of Mr. Pringle’s specimens in the herbarium of Prof. 
