Part 2, 1915] CARDUACEAE: HELENIEAE 127 



15-20 mm. in diameter, yellow; corollas 3 mm. long, glandular-granuliferous; tube less than 



0.5 mm. long; throat deeply campanulate; achenes nearly 2 mm. long, hirsute; squamellae 



lanceolate, fimbriate, short-acuminate, about one fourth as long as the corolla. 



Type raised from seeds, sent by Dr. Hngelmann from Missouri (herb. Berlin; a tracing by Klatt 

 in the Gray Herbarium). 



Distribution: Missouri and Illinois to Minnesota. 



20. Helenium latifolium Mill. Gard. Diet. ed. 8.'Helenium no. 2. 



1768. 



Helenium autumnale L. Sp. PI. 886, in part. 1753. 



Helenium canaliculatum Lam. Jour. Hist. Nat. 2: 213. 1792. 



Helenia decurrens Moench, Meth. 589. 1794. 



Helenium pumilum Willd. Enum. Suppl. 60. 1813. 



? Helenium commutatum Link, Ind. Sem. Hort. Berol. 1840: 21, hyponym. 1840. 



A stout perennial; stem 3-10 dm. high, glabrate or minutely puberulent, winged, branched 



above; leaves sessile, oblanceolate, lanceolate or elliptic, 3-15 cm. long, more or less serrate 



or the uppermost entire, acute or short-acuminate at the apex, tapering at the base, decurrent, 



finely puberulent or in age glabrate, punctate; heads numerous, corymbose; peduncles 3-6 



cm. long; bracts subulate, 5-7 mm. long; ray-flowers pistillate; ligules yellow, 10-15 mm. 



long, 5-10 mm. wide; disk globose, 10-13 mm. in diameter; corollas 3 mm. long, 



glandular-granuliferous; tube less than 0.5 mm. long; throat deeply campanulate; achenes 



fully 1.5 mm. long, hispid on the ribs; squamellae lanceolate, erose-fimbriate, acuminate, 



about one-fourth as long as the corolla, only slightly longer than the tube. 



Type locality: North America. 



Distribution: Connecticut to Quebec, Minnesota, Mississippi, and Florida. 



Illustrations: Jour. Hist. Nat. pi. 35; Pluk. Amalth. Bot. pi. 372, f. 4; Lam. Tabl. Encvc 

 pi. 688, f. 1; Schkuhr, Handb. pi. 250; W. Barton. Fl. N. Am. pi. 26; Bot. Mag. pi. 2994; Raf. 

 Med. Fl. pi. 47; Meehan, Nat. Fl. 2: pi. 29 (all as H. autumnale). 



21. Helenium autumnale L. Sp. PI. 886. 1753. 



Helenia autumnalis Hill, Hort. Kew. 6. 1769. 



Helenium longifolium Smith, in Rees, Cycl. 17: Helenium no. 2. 1811. 



Helen iastrum autumnale Kuntze, Rev. Gen. 342. 1891. 



Helenium huronense Britton, in herb. 



A tall perennial; stem 4-10 dm. high, branched above, narrowly angled, sparingly puberu- 

 lent or glabrate; leaves narrowly linear-lanceolate, 5-12 cm. long, 0.5-2 cm. wide, ascending, 

 entire or denticulate, more or less pubescent or glabrate; heads radiate, corymbose; peduncles 

 3-8 cm. long; bracts lance-subulate, about 5 mm. long; ray-flowers pistillate; ligules yellow, 

 10-12 mm. long, 5-7 mm. wide; disk globose, 10-15 mm. in diameter; corollas 3 mm. long, 

 glandular-granuliferous; tube about 0.5 mm. long; achenes 1.5 mm. long, hispid on the ribs; 

 squamellae lanceolate, acuminate, laciniate, about 0.7 mm. long. 



Type locality: Canada. 



Distribution: Quebec, Ontario, New York, and mountains of Pennsylvania. 



Illustrations: Morison, Hist. sect. 6, pi. 6,f. 74; Cornuti, Can. PI. 63. 



22. Helenium macranthum Rydberg. 



Helenium grandiflorum Nutt. Trans. Am. Phil. Soc. II. 7: 384. 1841. Not 77. grandijlorum Gilib. 



1781. 

 ? Helenium tubuliflorum DC. Prodr. 5: 666. 1836. 

 Helenium autumnale grandijlorum A. Gray, Syn. Fl. N. Am. I 2 : 349. 1884. 



A stout perennial; stem 3-10 dm. high, with rather prominent wings, densely puberulent 

 or hirsutulous; leaves broadly lanceolate or ovate-lanceolate, or the lower oblanceolate, 4-10 

 cm. long, acuminate, often dentate, densely short-pubescent; heads in flat- topped corymbs; 

 peduncles 5-10 cm. long; bracts subulate, 10-15 mm. long; ray-flowers pistillate; ligules 

 yellow, 10-20 mm. long; disk globose, 15-20 mm. in diameter; corollas 4 mm. long or nearly so, 

 glandular-granuliferous and puberulent ; tube 0.5mm. long; throat deeply campanulate; achenes 

 nearly 2 mm. long, hispidulous on the ribs; squamellae 2 mm. long or more, lanceolate, lacerate, 

 acuminate into a long awn-tip. 



Type locality: Banks of the Oregon [Columbia River]. 



Distribution: Saskatchewan and North Dakota to Oregon, British Columbia, and the Mac- 

 kenzie. 



