RUTACEAE 195 



1. Oxalis Acetosella L. White or True Wood-sorrel. (Man. p. 

 576; I. F.y. 22^0.') In eold damp woods, N. S. to Man., the mountains 

 of N. Q..— Pennsylvania : Wayne; Lackawanna; Tioga; Monroe; 

 Carbon ; Blair ; Cambria ; Clearfield ; Erie ; Somerset. 



2. Oxalis violacea L. Violet Wood sorrel. (Man. p. 576; I. F. 

 f. 22^1.) In woods, northern N. Eng. to Mmu. and the Rocky Mts., 



south to Fla. and N. Max. — Pennsylvania: Northampton; Pike ; 

 Bucks ; Montgomery ; Delaware ; Chester ; Lancaster ; Frank. 

 LIN ; York ; CENTRE ; Allegheny. 



3. Oxalis stticta L- Upright Yellow Wood-sorrel. (Man. p. 



576 ; I. F.y. 2254.) In woods and fields, N. S. to N. Dak. and Colo., south 

 to Fla. and Tex. — Pennsylvania : Monroe ; Bucks ; Allegheny ; Lan- 

 caster. 



4. Oxalis Bushii Small. Bush's Wood-sorrel. (Man. p. 577.) In 

 dry soil, Pa., Mo. and Ark. — Pen?isylvania : Bradford. 



5. Oxalis rufa Small. Red Wood-sorrel. (Man. p. 577.) In 

 woods, INIass. to N. Y., Ga. and Tenn. — Poinsylvania : Monroe. 



6. Oxalis Brittoniae Small. (Man. p. 577.) In woods and fields, N. 

 Y. to N. C. and Teun. — Pennsylvania : Monroe, Tannersville ; Lan- 

 caster. 



7. Oxalis cymosa Small. Tall Yellow Wood-sorrel- (Man. p. 



577 ; I. F.y. 22^6.) In woods and fields, Ont. to Mich., Fla., Neb. and Tex. 

 Pefinsylvania : Northampton ; Bucks ; Dauphin ; Columbia ; Frank- 

 lin ; Chester. 



8. Oxalis grandis Small. Great Yellow Wood-sorrel. (Man. 

 p. 577 ; I. F.y. 225J.) On river banks, Pa. to 111., N. C. and Tenn. — 

 Pennsylvania : Franklin ; Allegheny. 



t 



Family 4. RUTACEAE Juss. Rue Family. 



Fruit dehiscent, capsular. i. Xanthoxylum. 



Fruit indehiscent, samaroid. 2. Ptelea. 



1. XANTHOXYLUM L- 



1. Xanthoxylum Americanum INIill. Prickly Ash. Toothache- 

 TrEE. (Man. p. 581 ; I. V.f. 2269.) In woods and thickets, Quebec to 

 Va., west to Minn., Neb. and Mo. — Pennsylva?iia : Northampton ; 

 Bucks ; Berks ; Lancaster ; Franklin ; Huntingdon ; Lacka- 

 wanna ; Allegheny. 



2. PTELEA L. 



I. Ptelea trifoliata L. Three-leaved Hop-tree. (Man. p. 581 ; 

 1. F. y". 22 J I.) In w^oods, L. I. to Fla., west to Minn., Tex, and northern 

 Mex. Escaped from cult. — Pennsylvania: Northampton; Berks; 

 Philadelphia. 



