48 WOODPECKERS IN RELATION TO TREES. 



White mangrove (Laguncularia racemosa). — Florida Keys 

 (A. M. 68). 



THE MYRTLE FAMILY (MYRTACE^). 



One of the seven native arborescent species is known to be attacked . 

 - Spanish stopper (Eugenia buxifolia). — Key West, Fla. (A. M. 76). 



THE DOGWOOD FAMILY (CORNACE.E). 



Six of the 10 native arborescent species are attacked by sapsuckers. 

 None are known to be seriously injured. 



LIST OF CORNACE^E ATTACKED. 



Sour gum (Nyssa sylvatica). — Dismal Swamp, Va., H. S. Barber. 



Tupelo gum (Nyssa unijiora). — Illinois (F. 26433). 



Ogeche plum (Nyssa ogeche) .—Georgia (A. M. 66). 



Cornel (Cornus asperifolia drummondi). — Columbia, Tex. 

 (A. M. 62). 



Flowering dogwood (Cynoxylon floridum). — Illinois (F. 26429); 

 Cottonport, La. 



Western dogwood (Cynoxylon nuttalli). — Oregon (A. M. 63). 



the heath FAMILY (ERICACEAE). 



Two of the 13 arborescent species of the United States are attacked, 

 one of which is severely injured. 



Sour wood (Oxydendrum arooreum). — (A. A. and A. M. 55.) 

 Madrona (Arbutus menziesii). — A specimen collected by Dr. 

 Hopkins at Grant Pass, Oreg., April 25, 1899, shows large continuous 

 horizontal areas denuded of bark. After several years' growth the 

 wood at the bottom of these wounds is still left exposed. 



THE HUCKLEBERRY FAMILY (VACCINIACE^) . 



The single arborescent species of this family is attacked and patches 

 of its bark are killed. 



Tree huckleberry (Batodendron arboreum). — At Cottonport, 

 Longbridge, and Abbeville, La., this species is abundantly punctured 

 by sapsuckers. Most of the trees have girdles of pecks and the bark 

 is killed in spots. The healing is slow and difficult, leaving patches 

 of dead wood exposed and the exterior of the tree considerably 

 distorted. 



THE SAPODILLA FAMILY ( SAPOTACEiE) . 



Two of the 11 native trees of tins family are attacked by sap- 

 suckers. 



Southern buckthorn (Bumelia lycioides). — Florida (A. A. and 

 A. M. 45). 



