(738) Hawksworth, Frank G. 



1960. Distribution of ponderosa pine dwarfmistletoe in the vicinity of an Arizona vol- 

 cano. Ecology 41: 799-800. 



(739) 



(740) 

 (741) 

 (742) 

 (743) 

 (744) 



1960. Growth rate of dwarfmistletoe infections in relation to crown class of the host, 

 U.S. Forest Serv. Rocky Mountain Forest and Range Exp. Sta. Res. Note 

 41, 4 pp. 



1961. Dwarfmistletoes of ponderosa pine. Int. Bot. Congr. Recent Advances in Bot, 

 9: 1537-1541. 



1961. Dwarfmistletoe of ponderosa pine in the Southwest. U.S. Dep. Agr. Tech. Bull. 

 1246, 112 pp. 



1963. Black Hills ponderosa pine susceptible to southwestern dwarfmistletoe. U.S. 

 Forest Serv. Res. Note RM-1, 2 pp. 



1965. Life tables of two species of dwarfmistletoe. I. Seed dispersal, interception, 

 and movement. Forest Sci. 11: 142-151. 



1965. Arceuthobium in Mexico. Brittonia 17: 213-238, 



(745) and Stuart R. Andrews. 



1961. Guides for pruning dwarfmistletoe-infected ponderosa pine branches. U.S. For- 



est Serv. Rocky Mountain Forest and Range Exp. Sta. Res. Note 64, 3 pp. 



(746) and Lake S. Gill. 



1960. Rate of spread of dwarfmistletoe in ponderosa pine in the Southwest . U.S. For- 

 est Serv. Rocky Mountain Forest and Range Exp. Sta. Res. Note 42, 2 pp. 



(747) and Thomas E. Hinds. 



1965. Spread of a parasite; dwarfmistletoe fruits are effective propellants in seed 

 dispersal. Natur. Hist. 74(3): 52-58. 



(748) and Arthur A. Lusher. 



1956. Dwarfmistletoe survey and control on the Mescalero-Apache reservation, New 

 Mexico. J. Forest. 54: 384-390. 



(749) andR. S. Peterson. 



1959. Notes on the hosts of three pine dwarfmistletoes in northern Colorado. U.S. 

 Agr. Res. Serv. Plant Dis. Reptr. 43: 109-110. 



(750) Hayes, F. A., and J. H. Stoeckeler. 



1935. Soil and forest relationships of the shelterbelt zone. Pp. 111-153. IN: Possi- 

 bilities of Shelterbelt Planting in the Plains Region. U.S. Forest Serv. Lake 

 States Forest Exp. Sta. 



(751) Hayes, G. L. , and J. H. Buell. 



1955. Trees also need water at the right time and place. U.S. Dep. Agr. Yearbook 

 1955: 219-228. 



(752) andW. E. Hallin. 



1962. Tree species to grow in the South Umpqua drainage. U.S. Forest Serv. Pacific 



Northwest Forest and Range Exp. Sta. Res. Note 221, 7 pp. 



47 



