38 THE SAN JOSE OR CHINESE SCALE. 



Eosa virginiana Mill. Koehler, Conn. 



Rosa rugosa Thunb. Britton, Koehler, Conn. 



Salix sp. Willow. Britton, Conn. ; Felt, N. Y. ; Sanderson, Del. 



Salix lucida Muhl. Koehler, Conn. 



Sallx jientandra Linn. Laurel-leaved willow. Lintner, N. Y. ; Alwood, Va. 



Salix vitellina Linn. Koehler, Conn. 



Salix hahylonicaJAnn. Weeping willow. Lintner, N. Y. ; Alwood, Va 



Salix humilis Marsh. Koehler, Conn. 



Salix incana Schrank. Koehler, Conn. 



Sorbus ap. Mountain ash. Felt, N. Y. ; Hunter, Kans. 



So7'bus americana Marsh. American mountain ash. Britton, Koehler, Conn.; 



Alwood, Va. 

 Sorbus aucuparia Linn. European mountain ash. Britton, Koehler, Conn. 

 Sorbus meJanocarpa C. Koch. {Aronia nigra Koehne). Black chokeberry. Koehler, 



Conn. 

 Symphoricarpos racemosus Michx. Snowberry. Felt, N. Y. ; Smith, N. J. 

 Syringa vulgaris Linn. Common lilac. Burgess, Ohio; commissioner of agriculture, 



N. Y. ; Troop, Ind. ; Alwood, Va. 

 Syringa persica Linn. Persian lilac. Britton, Conn. 

 Tilia STp. Basswood, linden. Britton, Conn.; Lintner, commissioner of agriculture, 



N. Y. ■ 



Tilia americana Linn. American linden or basswood. Britton, Conn. ; Alwood, Va. 

 Toxylon pomiferwn Eaf. Osage orange. Britton, Conn.; Lintner, Felt, N. Y. ; 



Alwood, Va. 

 Ulmus sp. Elm. Lintner, N. Y. ; Webster, Ohio; Troop, Ind. 

 TJlmus americana Linn. American elm. Britton, Koehler, Conn. ; Alwood, Va. 

 JJlmus campestris Smith. English or European elm. Britton, Conn.; Felt, N. Y.; 



Smith, N. J. 



OCCASIONALLY OR RARELY INFESTED. 



Jeer sp. Maple. Webster, Burgess, Ohio; Fernald, Mass. ; Butz, Pa. ; commissioner 



of agriculture, N. Y. 

 Acer saccharinum Linn. Silver maple. Gould, Md. ; Alwood, Va. ; Hunter, Kans.; 



Felt, N. Y. 

 Acer saccharinum. Weir's cut-leaved. Felt, N. Y. 

 Acer platanoides Linn. Norway maple. Gould, Md. 

 Actinidia arguta Miq. {A. polygama). Alwood, Va. 

 JEsculus hippocasianum Linn. Horse-chestnut. Felt, commissioner of agriculture, 



N. Y. ; Burgess, Parrot, Green, Ohio. 

 Alnus sp. Alder. Felt, N. Y. ; Alwood, Va. 

 Ampelopsis quinquefolia Michx. Virginia creeper. Alwood, Va. 

 Betula sp. Birch. Felt, N. Y. 



Betula alba Linn. Cut-leaved white birch. J^ritton, Conn.; Rolfs <fe Quaintance, Fla. 

 Buxus ap. Box, Britton, Conn. 

 Cnstanea americana Raf. Chestnut. Rolfs & (Quaintance, Fla.; Alwood, Va. ; 



Felt, N. Y. 

 Catalpa sp. Rolfs &. Quaintance, Fla. 



Catalpa bignonioides Walt. Common catalpa. Alwood, Va. 

 Ceanothiis americanus Linn. Koehler, Conn. 

 Celtis occidentalis Linn. Koehler, Conn. 

 Cercidiphyllum japonicum Sieb. & Zucc. Britton, Conn. 

 Citrus aurantium Linn, Gossard, Fla. 

 Cornus alternifolia Linn. Koehler, Conn. 

 Cornus stolonifera Michx. Koehler, Conn. 



I 



