182 OHDER 70. COMPOSITE. 



summit. Disk-fls. 9 . Invol. small, scales linear to filiform, reflexed. Rtcep. 

 naked, convex to oblong. Cyp. angled, clavate or turbinatc. Pap. of 5 13 

 silvery, thin scales.-r-Herbs with alternate, often decurrent leaves, punctate^ 

 resinous. Heads corymbous or solitary, showy, yellow. 



HELLENIASTRUM. Rays pistillate. Pappus awncd. Heads corymbed ... (a) 



rt Disk globular, its corollas 5-toothed. Pappus awned Nos. 1 3 



a Disk oblong, its corollas 4-toothed. Pappus scales obtuse No. 4 



LErr6pODA. Rays mostly neutral and fruitless. . . (b) 



b Heads corymbed, on short peduncles. Pappus awned. Disk globous No. 5 



b Head solitary, on a long ped. Disk convex. c Cypsela glabrous No*. 6, 7 



<; Cypsela hairy Nos 810 



1 H. autumnale L. St. strongly winged; Ivs. lanceolate, serrate, decurrent, heads 



loosely corymbed. 2f Damp. 2-3f. Hds. large, with drooping rays. Sept. Very bitter. 



2 H. parviflorum N. St. scarcely winged ; Ivs. lanceolate, subentire, slightly decur- 



rent; sc. filiform, shorter than the globular disk ; lids, small, few. Ga. (Nuttall.) Scarce. 



3 H. tenuIfoHum N. St. and numerous fastigiate branches wingless ; Ivs. crowded, 



linear or filiform, fascicled ; sc. subulate. Fields, Ga. to La. l-2f. Rays spread 10". 



4 H. quad ridcutatum Lab. Much branched, strongly winged ; Ivs. oblong, some 



lobed or toothed ; disk oblong, longer than the rays. Swamps, S-W. l-3f. June- Aug. 



5 H. Bracliypoda. St. strongly winged, branches few, corymbous, 1-headed ; lids. 



small (4"), rays 8-12, short (3-4") ; disk brown-purp., globular. Damp, 111. to Ga. 1-2C. 



6 H.ljeptopoda. Smooth; st. simple, clustered, naked above ; Ivs. lanceolate to ob- 



long-linear, some decurrent; rays 2030, spreading If; disk convex. Moist soils, 

 S. Car. to Fla. 2f. March, April. 



7 II. incisnm. Smooth ; Ivs. lanceolate, sessile, not decurrent, sinnate-pinnatifld or 



incised ; rays about 4:), in 2 or 3 rows ; fruit glabrous. Low barrens, Ga., and W. 2f. 



8 H. puberulum. Downy; sts. much clustered; Ivs. lance-linear, sessile, not de 



current; rays 20-30, broad, spreading lf-2'; fr. hairy. Wet pine-barrens, S. 2f. Ap.,May. 



9 H. brevifolium. Pubescent above, single, often some branched ; Ivs. lance-obi, to 



linear, obtuse, the radical spatulate, cauline subdccurrent. Wet. S. 2f. May, June. 



10 H. fiinbriatuin. Smooth; often branched ; leaves lance-linear, subentire, acute, 

 decurrent ; pap. scales deeply cleft into a fringe of bristles. Barrens, Fla. l-2f. Apr. + 



68. BALDWINIA, N. Invol. scales closely imbricated in 2 4 rows. 

 Recep. convex, deeply honeycombed, with homy walls. Rays 8 20, neu- 

 tral, in 1 row, 3-toothed. Disk 5 . Cypsela silky-villous, immersed in the 

 cells. Pappus of 9 12 oblong scales, if. Simple or corymbed. Leaves 

 alternate, linear, punctate. Heads yellow. July Sept. 



1 B. unlflora N. St. simple, puberulent, with 1 large head ; rays about 20 ; Ivs. below 



linear-spatulate ; pap. scales 9. Swamps, Va. and S. 1 2f. Rays spreading 2'. 



2 B. multiilora N. Glabrous, corymbously branched ; rays about 10; Ivs. crowded, 



narrow-linear; fruit truncate and ray-marked at summit, crowned with 12 obo-ate 

 scales. Sand hills, Ga. Fla. 1 3f. Rays If. (Actinospermum, T. & G.) 



69. MARSHALLIA, Schreb. FALSE SCABISII. Invol. scales lanct 

 linear, subequal, erect, in 1 or 2 rows. Recep. convex, with linear, rigid 

 pales. Fls. all tubular, 5 . Cor. lobes slender, spreading. Cyp. 5-anglcd. 

 Pappus of 5 or 6 membranous, awned scales, if Simple or branched, 

 with alternate, entire, 3-veined leaves, and solitary, long-stalked heads of 

 purplish flowers, resembling a Scabish. Ornamental. 



1 IH. latifolia Ph. St. simple, leafy ; Ivs. ovate-lanceolate, acuminate, sessile ; scales 



