r9rt] BRIEFER ARTICLES 387 
between the 15 and 22.5 cm. classes. It was only rarely that stumps 
over 22.5 cm. had produced any sprouts, while many stumps of 30 cm. 
and larger showed an entire lack of sprouting ability in older trees. 
Recuperation after fire was well shown in Flux Canyon, which lies 
to the north of the Mowry Mine. A few scattering veterans had pro- 
duced a fair amount of reproduction, which was mostly in the seedling 
Stage. A severe ground fire which killed back several Emory oaks 
(Quercus Emoryi Torr.) and whiteleaf oaks (Quercus hypoleuca Engelm.) 
also killed back most of the Chihuahua pine reproduction. In every 
case where the dead leader of the pine remained, and in many cases 
Where it was missing, 3-20 vigorous sprouts developed (fig. 2). It 
should not be inferred that this reproduction is more fire resistant than 
that of the oaks, for no information was available as to the amount and 
distribution of litter. 
n the three stands already mentioned, as well as in various other 
places in the Patagonia Mountains, Canelo Hills, and Huachuca Moun- 
tains, a remarkable feature of the sprout growth was the early age at 
which cones were produced. A single case was found in Lyle Canyon 
where a tree 1 5 cm. in diameter breast-high and 7.5 meters tall was 
producing a green cone on an adventitious shoot only 30 cm. long which 
occurred 1.2 meters above ground. A few cases were found in which 
Sprouts 7~10 years old were producing 1~3 cones each, and it was quite 
common to find sprouts ro~20 years old bearing 3-30 cones. : 
No study was made as to the relative rate ot growth of sprouts and 
Seedlings. Naturally the slow growth of the distinctly seedling period 
1S not found in the sprout growth, but it is not known if the height 
growth of the sprouts culminates before the seedlings, as is the case with 
broad-leaved trees, No difference in form was noticed, although care- 
ful measurements might show a difference in form factor. 
ven more remarkable is the sprouting of alligator juniper. In the 
northern portion of its range this species normally shows a large percentage 
of the trees with one or two shoots at the bases of the trees. These 
Weak shoots are rarely over 15 cm. tall, and simply maintain life or die 
down, and are occasionally replaced by other equally weak shoots. 
Th extensive trips over the Lincoln National Forest, where these small 
Sprouts are common, not a single cut-over area showed any reproduction 
from the bases of the trees. There is a single tree between Capitan and 
Bonito, however, which was pollarded, and in May 1907 had 139 sprouts 
varying from 5 to 45 cm. in length (fig. 3). The same sort of sprouts 
Were noted at the bases of trees in the Gila National Forest, but in the 
