108 PAGACEAE 



8. Quercus Marylandica Muench. Bi,ack-jack or Barren Oak. 

 (Man. p. 334; I. F. / 1235.) In dry soil, Iv- I. to O., Neb., Fla. and 

 Tt-x..— Pennsylvania: Northampton; Berks; Bucks, Bristol; I,an- 

 CASTER ; Chester ; Dei,aware ; Crawford ; Montgomery. 



9. Quercus Phellos L. Whlow Oak. (Man. p. 335 ; I. F./. 1237.) 

 In moist woods, L- I., N. Y. to Fla., Mo. and Tex. — Pennsylvania : FuUr 

 adei,phia ; Chester ; Lancaster ; Bucks ; Dei<aware. 



10. Quercus imbrioaria Michx. ShinGlE Oak. (Man. p. 335 ; I. F. 

 /. I23g.) Central Pa. to Mich., Neb., Ga., Tenn. and Ar^.— Pennsyl- 

 vania : Lehigh ; Huntingdon ; Bedford ; Indiana ; Phii,adei,phia, 

 Haddington ; Ai,i,EGHeny. 



11. Quercus alba L. White Oak. (Man. p. 335; I. F. /. 1240.) 

 Me. to Minn., Fla. and Tex. — Pennsylvania: Franklin; Delaware; 

 Northampton ; Lancaster ; ChssThr ; Monroe, Pocono ; Lacka- 

 wanna ; Tioga ; Allegheny. 



12. Quercus minor (Marsh.) Sargent. POST OR Iron Oak. (Man. 

 P- 335 ; I- ^-f- '^4'-) 1° dry soil, Mass. to Mich., Fla. and Tex. — Penn- 

 sylvania : NORTHAMPTON ; CHESTER ; LANCASTER ; Frankun ; Leb- 

 anon ; Delaware. 



13. Quercus macrocarpa Michx. Mossy-cup OR Bur Oak. (Man. 

 p. 336 ; I. F./. 124.3.) In rich soil, N. S. to Man., Mass., Pa., Kans. and 

 Tex. — Pennsylvania : Huntingdon ; Franklin ; Northampton ; Cen- 

 tre ; Allegheny. 



14. Quercus platanoides( Lam.) Sudw. Swamp White Oak. (Man. 

 p. 336; I. F.y. 1244.) In moist or swampy soil, Quebec to Mich., Ga. 

 and hr'k.— Pennsylvania : Northampton ; Lancaster ; Monroe ; 

 Franklin ; York ; Chester ; Delaware ; Allegheny. 



15. Quercus Piinus L. Rock Chestnut Oak. ( Man. p. 336 ; I. F. 

 /. 1.246.) In dry soil, Me. to Ont., Ala. and Tenn. — Pennsylvania: 



Northampton ; Lancaster ; Franklin ; Bedford ; Huntingdon ; 

 Monroe ; York ; Allegheny. 



16. Quercus acuminata (Michx.) Sargent. ChESTnuT or Yellow 

 Oak. (Man. p. 336; I. F. /. 1247.) In dry soil, preferring limestone 

 ridges, Vt. and Ont. to Minn., Ala. and Tex. — Pennsylvania : Hunting- 

 don ; Franklin ; Lancaster ; Northampton ; Chester. 



17. Quercus prinoides Willd. Scrub Chestnut Oak. (Man. p. 336 ; 

 I. F. f. 1248.) In dry sandy or rocky soil, Me. to Minn., Ala. and Tex. 

 —^Pennsylvania : Northampton ; Lancaster ; Huntingdon ; Cen- 

 tre ; Franklin ; Blair ; Lebanon ; Lackawanna ; Monroe ; Pike ; 

 Delaware. 



Order 6. URTICALES. 



A. Fruit an achene, the achenes sometimes in the accrescent sepals and form- 

 ing a syncarp. 

 a. Flowers not on a receptacle : fruits not forming syncarps : sepals neither 

 thick and juicy nor enveloping the achenes. 

 * Style or stigma i, the latter sometimes tufted: ovule erect: filament* 

 nflexed in the bud. Fam. i. Urticaceab. 



