306 CICHORIACEAE 



N. Y., N. J. and Pa. Nat. from ^\x— Pennsylvania : Wayne; Susque- 

 hanna ; Wyoming ; Lackawanna ; Potter ; Centre ; Erie. 



3. Hieracium venosum L. RaTTLESnake-weED. (Man. p. 904; 

 I. F. /. 35()7- ) Dry woods and thickets, Me. to Mau., south to Ga., Ky. 

 and Neb. — Pennsylvania: Monroe ; Northampton; Bucks; Dela- 

 ware ; Chester ; Lancaster ; Montour ; Columbia ; Franklin ; 

 Huntingdon ; Allegheny. 



4. Hieracium Marianum Willd. ]Mar\'LAND Hawkweed. (Man. 

 p. 904; L F. /. 336S.) In dry woods and thickets. R. I. to southern 

 N. Y., Pa., Ky., Ala. and Fla. —Pennsylvania : Northampton; Mon- 

 roe ; Delaware ; Chester ; Lancaster. 



5. Hieracium Greenii Porter &Britton. Green's Hawkweed. (Man. 

 p. 905 ; I. F. /. J5(5p.) In dry soil, mountains of Pa. to Va. and W. Va. — 

 Pennsylvania: Franklin, Two Top INIt.; Huntingdon, Tuscarora Mts. 



6. Hieracium Canadense Michx. Canada Hawkweed. (Man. 

 p. 905 ; I. F. f. 3571.) In dry woods and thickets, N. S. to the N. W. 

 Terr., south to N. J. and Mich. — Pennsylvania: Monroe; Bucks; 

 Huntingdon. 



7. Hieracium paniculatum L. PaniclEd Hawkweed. ( Man. p. 905; 

 I. F. f. 357^-) Iti dry woods. Me., Quebec to Ga., Ala. and Ky. — Penn- 

 sylvania: Bucks; Delaware; Chester; Lancaster; Allegheny. 



8. Hieracium scabrum ]Michx. Rough Hawkweed. (Man. p. 905 ; 

 I. F. f. 3573-) In dry woods and clearings, N. S. to Minn., Ga., Neb. 

 and Kans. — Pennsylvania : Northampton ; Bucks ; Delaware ; Ches- 

 ter ; Lancaster ; Montgomery ; York ; Franklin ; Huntingdon ; 

 Craweord ; Erie ; Allegheny. 



9. Hieracium Gronovii L. Hairy Hawkweed. (Man. p. 905; 

 I. F. f. 3374-) In dry soil, Mass. to Ont., 111., Fla. and Tex. — Pennsyl- 

 vania : Northampton ; Bucks ; Delaware ; Chester ; Lancaster ; 

 Franklin. 



12. NABALUS Cass. 



Bracts of the involucres glabrous or sometimes with a few scattered hairs. 

 Involucres slender, about 2 mm. thick, 5-7-flowered, light green : pappus 



light straw-colored. i. N. aUissimus. 



Involucres stout, 3-6 mm. thick, 9-16-flowered, deep green, glaucous, purple. 

 Pappus deep cinnamon-brown. 2. iV. albus. 



Pappus straw-color or light brown. 



Larger bracts of the outer involucre lanceolate : pappus surpassing the 

 inner involucral bracts. 3. N. se>-pe>ilarius. 



Larger bracts of the outer involucre ovate or triangular-ovate : pappus 

 and inner involucral bracts about equal in length. 



4. N. trifoliatus. 

 Bracts of the involucres copiously pubescent. 

 Involucres 8-i6-flowered : inflorescence thyrsoid. 5. N. racemosiis. 



Involucres 20-25-flowered : inflorescence corymbose-paniculate. 



6. X. crepidineus. 

 1. Nabalus altissimus (L.) Hook. Tall White Lettuce. (Man. 

 p. 906 ; I. F.y. 3376.) In woods and thickets, Newf. to Man., south to 



