388 BOTANICAL GAZETTE [MAY 
vicinity of Gleed, Arizona, where rare specimens cf the species occur, 
no sprouts were found. 
Along the Mexican boundary this species is usually a minor one, 
but it probably reaches here the maximum individual development that 
occurs in the United States. For the most part, it is fovnd in valleys 
and canyons and on terraces and slopes, closely associated with the 
evergreen oaks and usually extending somewhat beyond the upper limit 
Fic. 3.—Root collar sprouts and pollard sprouts on alligator juniper as a result 
of cutting; Lincoln National Forest, N.Mex. 
of Arizona white oak (Quercus arizonica Sarg.). Like the Chihuahua 
pine, this species is not grazed by stock except in cases of starvation, but 
it is greatly injured by cattle which run over it to brush off flies (ig. 4). 
A considerable amount of cutting has been done to furnish mine timbers 
and fence posts. 
This species does not show adventitious buds as does the pine, but 
when cut or broken off, it shows a much stronger tendency to produce 
pollard sprouts or stump sprouts than does the pine, and usually shows 
fully as strong a development of root collar sprouts. Out of 50 cases 
