202 ANACARDIACEAE 



Family 2. LIMNANTHACEAE Lindl. False Mermaid Family. 

 1. FLOERKEA Willd. 

 1. Floerkea proserpinacoides Wiild. False Mermaid. (Man. p. 

 599 ; I. F. f. 2J46.) In marshes and along rivers, Quebec to Ont., Ore., 

 Pa.,Tenn., Mo., Utah and Calif. — Pennsylvania: Northampton; Blxks; 

 Delaware ; Lancaster ; Franklin ; Washington ; Allegheny. 



Family 3. ANACARDIACEAE Lindl. Sumac Family. 



Leaves compound : ovary and drupe not oblique. i. Rhus. 



Leaves simple : ovary and drupe very oblique. 2. Cotinl'S. 



1. RHUS L. 



Drupe with a pubescent outer coat : stone smooth. 

 Leaves with 9-13 leaflets : flowers appearing after the leaves. 



Leafrachis winged. i. R. copallina. 



Leaf-rachis terete or nearly so. 

 Twigs and leaves copiously pubescent : leaflets not glaucous beneath. 



2. R. hirta. 

 Twigs and Jeaves glabrous : leaflets glaucous beneath. 

 Leaves with 3 leaflets : flowers appearing before the leaves. 

 Drupe with a glabrous outer coat : stone ribbed. 

 Leaflets 7-13 : shrub or tree. 

 Leaflets 3 : vine. 



1. Rhus copallina L. Dwarf or Mountain Sumac. (Man. p. 600; 

 I. F. /. 234J.) In dry soil, Me. and Ont. to Fla., Minn, and Tex. — 

 Pennsylvania : Pike ; Lackawanna ; Monroe ; Northampton ; 

 Bucks ; Delaware ; Chester ; Lancaster ; Franklin ; Cumber- 

 land ; Dauphin ; Huntingdon ; Armstrong ; Susquehanna ; 

 Allegheny. 



2. Rhus hirta (L. ) Sudw. St.\ghorn Sumac. (Man. p. 600 ; I. F. 

 /. 2J48.) In dry or rocky soil, N. S. to Ga., Ont., S. Dak., Mo. and Miss. 

 — Pennsylvania : Pike ; Monroe ; Northampton ; Columbia ; Lu- 

 zerne ; Bucks ; Delaware ; Chester ; Franklin ; Huntingdon ; 

 Allegheny. 



3. Rhus glabra L. Smooth Upland Sumac. (Man. p. 600 ; I. F./. 

 234g.') In dry soil, N. S. to B. C, Fla., Miss, and Ariz. — Pennsylvania- 

 Monroe ; Pike ; Luzerne'; Northampton ; Bucks ; Philadelphia ; 

 Delaware; Chester; Lancaster; Dauphin; Franklin; Hunt- 

 ingdon ; Allegheny. 



4. Rhus aromatica Ait. Fragrant Sumac. (Man. p. 601 ; I. F. /. 

 2330.^ In rocky woods, Ont. and Vt. to Fla., Minn., Kans. and La. — 

 Pennsylvayiia : Cumberland ; Franklin ; Huntingdon ; Blair ; 

 Allegheny. 



5. Rhus Vernix L. Poison Elder or Sumac. (Man. p. 601 ; I. F. 

 /. 2332.) In swamps, southern Ont. to R. I., Fla., Minn., Mo. and La. 

 — Pennsylvania : Northampton ; Bucks ; Delaware ; Chester ; 

 Lancaster ; Dauphin ; Lebanon ; Berks. 



