Part 2, 1915] CARJDUACEAE : HELENIEAE 129 



heads corymbose, radiate or discoid; bracts linear-subulate, 5-7 mm. Long; ray-flowers neutral; 

 ligulcs 1-1.5 cm. long, with a narrow base, yellow or partly or wholly brown-purple (II. pur- 

 pureum and //. atropurpureum) or wanting; disk ovoid-globose, brownish-purple, 6-10 mm. 

 broad; corollas 2-2.5 mm. long, glandular-granuliferous; tube minute; achenes about 1 mm. 

 long; squamellac ovate or lanceolate, acute to awn-tipped, 0.5 mm. long. 



TypB locality: Plains of Red River, Arkansas. 



Distribution: Rhode Island; Pennsylvania to Illinois, Arkansas; Texas, and Florida. 



Illustrations: 111. Hort. pi. 106; pi. 375(7). 



27. Helenium polyphyllum Small, Fl. SE. U. S. 1291. 1903. 



A much branched perennial; stem 3-8 dm. high, broadly winged, puberulent; basal 

 leaves oblanceolate, the upper linear-lanceolate, numerous, 2-10 cm. long, acute, entire or 

 undulate, puberulent; heads very numerous, corymbose; peduncles 2-5 cm. long; bracts 

 narrowly linear or linear-subulate, 5-8 mm. long; receptacle decidedly ovoid; ray-flowers 

 neutral; ligules yellow, 6-15 mm. long; disk ovoid-globose, purple, 8-10 mm. broad; 

 corollas 2-2.5 mm. long, glandular-granuliferous; tube minute; achenes about 1 mm. long, 

 hispid on the angles; squamellae lanceolate, acuminate, nearly 1 mm. long. 



Type locality: Not given; but the type was collected at Jackson, Tennessee. 

 Distribution: Illinois to Arkansas and Georgia. 



28. Helenium fimbriatum (Michx.) Wood, Bot. & Fl. 182. 1870. 



Gaillardia fimbriate, Michx. Fl. Bor. Am. 2: 142. 1803. 

 Leptopoda fimbriate T. & G. Fl. N. Am. 2: 387. 1842. 

 Heleniastrum fimbriatum Kuntze, Rev. Gen. 342. 1891. 



A simple perennial, with a root-stock; stem 5-9 dm. high, glabrous, narrowly winged; 

 basal leaves narrowly oblanceolate, 1-1.5 dm. long, glabrous, entire; upper leaves linear- 

 lanceolate or linear, acute or attenuate; heads usually solitary, radiate; bracts linear-subulate, 

 7-10 mm. long, reflexed; ray-flowers neutral; ligules 1.5-2 cm. long, with narrow acute divi- 

 sions; disk yellow, about 15 mm. broad; corollas 5 mm. long; tube very short; throat cylindric; 

 achenes fully 1 mm. long, hirsute on the ribs; squamellae about 2 mm. long, dissected half 

 way into bristle-like divisions. 



Type locality: In swamps, from Carolina to Florida. 

 Distribution: (South Carolina?); Florida to Texas. 



29. Helenium Curtisii A. Gray, Proc. Am. Acad. 9: 204. 1874. 



Leptopoda brevifolia P T. & G. Fl. N. Am. 2: 387. 1842. 



Leptopoda integrijolia M. A. Curt.; T. & G. Fl. N. Am. 2: 387, as synonym. 1842. 

 Heleniastrum Curtisii Kuntze, Rev. Gen. 342. 1891. 



Helenium integrifolium C. Mohr, Contr. U. S. Nat. Herb. 6: 811. 1901. Not H. inlegrifolium 

 Benth. & Hook. 1881. 



A simple perennial, with a rootstock; stem 5-10 dm. high, narrowly winged, simple or 

 slightly branched above, glabrous; basal leaves oblanceolate, 1-1.5 dm. long, sparingly puberu- 

 lent, undulate; stem-leaves narrowly oblanceolate to linear-lanceolate, entire; heads solitary 

 or 2 or 3, on long peduncles; peduncles 1-3 dm. long, thickened upwards; bracts lanceolate to 

 lance-subulate, 5-8 mm. long; ray-flowers neutral; ligules yellow, 15-20 mm. long, 5-8 mm. 

 wide, with 3-4 obtuse lobes; disk 18-20 mm. broad, hemispheric; corollas 4.5-5 mm. long; 

 tube very short; throat cylindric; achenes 1.5 mm. long, hirsute on the ribs; squamellae 6-8, 

 obovate, entire, obtuse, 1.5 mm. long. 



Type locality: Raleigh, North Carolina. 

 Distribution: North Carolina to Florida. 



30. Helenium Helenium (Nutt.) Small, Fl. SE. U. S. 1292. 1903. 



Leptopoda Helenium Nutt. Gen. 2: 174. 1818. 

 Leptopoda helenioides Cass. Diet. Hist. Nat. 26: 80. 1823. 

 Leptopoda decurrens MacBride; Ell. Bot. S. C. & Ga. 2: 446. 1S24. 

 Leptopoda denticulata Nutt. Trans. Am. Phil. Soc. II. 7: 373. 1841. 

 Helenium Leptopoda Wood, Bot. & Fl. 182. 1870. 



