40 



WOODPECKERS IN RELATION TO TREES. 



LIST OF ROSACEA ATTACKED. 



(Vauquelinia calif ornica) . — Arizona (A. A. 242). 



Mountain mahogany (Oercocarpus oetuloides) . — Arizona (A. A. 

 and A. M. 203). 



Mountain mahogany (Oercocarpus traskise). — Santa Catalina 

 Island, Cal. (A. A. 205). 



Mountain mahogany (Oercocarpus brevifiorus) . — Huachucha Moun- 

 tains, Ariz. (A. M. 204). 



Mountain mahogany (Oercocarpus ledifoJius). — Eureka, Cal,. 

 (A. A. 202). 



THE APPLE FAMILY (MALACEiE) . 



This family contains trees of immense economic importance, as 

 the pear, crab apple, and apple. Each of these is attacked by sap- 

 suckers. Both kinds of apple trees are often killed and young or- 

 chards are sometimes ruined. The apple family includes also valuable 

 ornamental trees, which are often injured or killed, especially the 

 mountain ash. The harm done to the trees of this family weiglis 

 heavily in the case against the sapsuckers. 



Species of Malacese knorvn to be attacked by sapsuckers. 



Genus. 



Number of 

 native 

 species. 



Native 



species 



attacked. 



Introduced 



species 

 attacked. 





1 

 

 5 

 G 

 1 

 50+ 



1 

 

 3 

 



1 

 10 







2 





2 

















2 









63+ 



15 



6 



Our information as to the number of species of hawthorn attacked 

 must be far less complete than that concerning other genera. Species 

 of this genus have been described in recent years by the hundred. 

 A conservative author now recognizes 50 arborescent species in the 

 Northeastern States, and as the genus seems to be a favorite with the 

 sapsucker, it is probable that many more than the 10 species here 

 recorded are attacked. 



LIST OF MALACE.E ATTACKED. 



Mountain ash (Sorbus americana). — Bendire notes that the yel- 

 low-bellied woodpecker is "partial to the . . . mountain ash." Mer- 

 riam says: "More than half the bark is sometimes removed from the 

 girdled portions, and the balance dries up and comes off. Therefore 

 it is not surprising that trees which have been extensively girdled 

 generally die." Warren notes that "in one garden [in Racine, Wis.], 



