50 WOODPECKERS IN RELATION TO TREES. 



THE EHRETIA FAMILY ( EHRETIACE^e) . 



One of the five arborescent species of the United States is punc- 

 tured by sapsuckers. 



Nockaway (Ehretia elliptica). — Texas (A. M. 17). 



THE TRUMPET CREEPER FAMILY (BIGNONIACE^). 



Three of the five native arborescent species are attacked by sap- 

 suckers. 



LIST OF BIGNONIACE.E ATTACKED. 



(Catalpa catalpa). — Smithsonian grounds, District of Columbia. 

 (Catalpa speciosa). — Allenton, Mo. (A. A. and A. M. 12); Illinois 

 (F. 26441). 



Desert willow (Chilopsis linearis). — Arizona (A. M. 14). 



THE MADDER FAMILY (rUBIACE^e). 



One of the seven native trees is attacked. 

 Buttonbusii ( Cephalanthus occidentalis) (A. A.). 



THE HONEYSUCKLE FAMILY (cAPRIFOLIACEJE). 



Each of two genera of this family has five arborescent species in 

 the United States. Of one, the elders, one species is known to be 

 attacked and of the other, the black haws, three species. So far as 

 known, none are seriously injured. 



LIST OF CArRII-'OLIAC K.K ATTACKED. 



Blue-berried elder (Sambucus glauca). — Oregon (A. M. 4). 

 Black haw ( Viburnum lentago). — Missouri (A. A. and A. M. 3). 

 Black haw ( Viburnum prunifolium) . — Georgia (A. A. and A. M. 

 1); Illinois (F. 26435). 

 Black haw ( Viburnum rufidulum) . — Rome, Ga. (A. A. 2). 



TREES ATTACKED BY THE RED-BREASTED SAPSUCKER. 



(Sphyrapicus ruber.) 



the poplars and willows (saxicacejs). 



Black cottonwood (Populus trichoearpa) . — Bendire. 



Cottonwood (Populus fremonti) . — C. S. Thompson. 



Weeping willow (Salix babylonica). — "I have noticed no other 

 trees [besides apple and pear] damaged except perhaps the weeping 

 willow." (Ernest Adams, Clipper Gap, Cal., Apr. 30, 1909). 



Willow (Salix cordata). — Vernon Bailey noted young Sphyrapicus 

 ruber regaling themselves on willow sap at Donner Lake, Cal., July 



