330 COMPOSITAE 



28. HELIOFSIS Fers. 



I(eaf-blades smooth : pappus none or of 2-4 short teeth, i. H. helianthoides 

 Leaf -blades rough : pappus crown-like or of 1-3 sharp teeth. 



2. H. scabra. 



1. Heliopsis helianthoides (L.) B.S. P. Pai<SE SunFi,ower. (Mati. 

 p. 984 ; I. P./. sSyS. ) In open places, Ont. to Fla., west to 111. and Ky. 

 — Pennsylvania : Northampton ; Bucks ; Delaware ; Chester ; Lan- 

 caster. ; Lycoming ; Franklin ; Fulton ; Fayette ; Washington ; 

 Allegheny ; Armstrong ; Erie. 



2. Heliopsis scabra Dunal. Rough Ox-eye. (Man. p. 984; I. F./. 

 j<?79.) Usually in dry soil, Me. to N. Y., N. J., 111., B. C, Kans. and 

 Ark. — Pennsylvania : Northampton ; Lancaster- 



29. ECLIPTA L. 

 1. Eclipta alba (L.) Hassk. EclipTa. (Man. p. 984; I. F./.j88o.) 

 Along streams and in waste places, southern N. Y. to 111. and Neb., south 

 to Fla., Tex. and Mex. Nat. from tropical America. — Pennsylvania: 

 Bucks ; Philadelphia ; Berks ; Delaware ; Lancaster ; York. 



30. RUDBECKIA L. 



Disk ovoid or globular, purple or dark brown. 

 Lower leaves with 3-5-lobed or 3-5-divided blades : bractlets of the recep- 

 tacle slender-tipped. i. R. triloba. 

 Lower leaves with entire or merely toothed blades : bractlets of the disk not 

 slender-tipped. 

 Stigma-tips subulate. 

 Involucre of narrow bracts much shorter than the ligules of the ray- 

 flowers. 2. R. hirta. 

 Involucre of foliaceous bracts as long as the ligules of the ray-flowers or 

 longer. 3. R. Briltonii. 

 Stigma-tips obtuse. 

 Upper stem-leaves with entire or inconspicuously toothed blades. 



4. R.fulgida. 

 Upper stem-leaves with laciniately or coarsely toothed blades. 



5. R. speciosa. 

 Disk cylindric or conic, yellowish or gray. 6. R. laciniata. 



1. Rudbeokia triloba L. Thin-lEavEd Cone-flower. (Man. p 

 986; I. F. /. 3883.) In moist soil, N. J. to Ga., west to Mich., Kans 

 and ha..— Pennsylvania : Franklin, near Chambersburg ; DELAWARE. 



2. Rudbeokia hirta L. Black-Eyed Susan. Y'ELLOw Daisy 

 (Man. p. 986 ; I. P./. 38S8.) In fields, Quebec to western Ont. and the 

 N. W. Terr., south to Fla., Colo, and Tts:.— Pennsylvania : NORTH 

 AMPTON ; Bucks ; Crawford ; Delaware ; Chester ; Lancaster ; 

 Columbia ; Tioga ; Erie ; Allegheny. 



3. Rudbeokia Brittonii Small. BriTTOn's ConE-FLOWER. (Man. 

 p. 987 ; I. P. /. 38S6. ) In woods, mountains of Pa. to Va. and Tenn. — 

 Pennsylvania : Huntingdon ; Lancaster. 



4. Rudbeokia fulgida Ait. Orange Cone-flower. (Man. p. 987; 



