SWEET GUMS AND SYCAMORES ATTACKED.. 



39 



Camphor tree (Cinnamomum camphora). — Camphor trees which 

 were abundantly punctured were observed at Gainesville, Fla., and 

 at Abbeville, La., the writer was informed that two camphor trees 

 planted near that town had been killed by sapsuckers. 



THE SWEET GUM FAMILY (aLTINGIACE^e). 



Only one species of this family occurs in the United States. It 

 is vigorously attacked by sapsuckers apparently throughout its range, 

 but, so far as we know, is never killed. 



Sweet gum (Liquidambar styracijlua) .—A tree in the Agricultural 

 Department grounds has a great many girdles of sapsucker pecks. 

 At the San tee Club, South Carolina, almost every sweet gum tree 

 bears sapsucker work, 

 the bark of some being 

 perforated as thickly 

 as possible from top to 

 bottom. At Gaines- 

 ville, Fla., a large pro- 

 portion of the trees are 

 abundantly punc- 

 tured, and the tree 

 seems as much a fa- 

 vorite at Abbeville, 

 La. 



THE SYCAMORES 



(PLATANACEiE) . 



Two of the three 

 native species are at- 

 tacked by sapsuckers, 



and although the work disfigures the smooth white 

 known to decrease the vitality of the trees. 



Sapsucker work on California sycamore {Platanus racemosa). 



bark, it is not 



LIST OF PLATANACE/E ATTACKED. 



Sycamore (Platanus occidentalis) . — Longbridge, La. 

 California sycamore (Platanus racemosa). — California (A. A. 

 and A.M. 244). (Fig. 7.) 



THE ROSE FAMILY (ROSACEA). 



All of the five arborescent species of this family occurring in the 

 United States are attacked by sapsuckers, and one (Cercocarpus 

 ledifolius) is known to be much disfigured. 



