COMPOSITiE. (COMPOSITK FAMILY.) 251 



8 scales, 8 - 1 2-flowcrcd ; pappus light brown ; flowers white or cream-color. — 

 Open woods in tlic upper districts of Georgia, and nortliward. Sept. — Stem 

 3" -4° high. 



2. N. altissimus, Hook. Smooth; stem simple or sp.iringly branched 

 above ; leaves thin, ovate or cordate, pctiolod, acuminate, (kiiticuhite, or tlie 

 lower ones ])aimately 3 -5-cleft or parted ; heads in small axillary and terminal 

 clusters, forming a long panicle ; involucre slender, grccnisli, of about 5 scales, 

 ."> - 6-flowered ; pappus dirty white or straw-colored. — Varies with the wavy- 

 toothed leaves, deltoid ; the lowest hastate -3-angled or parted. (Prenanthes 

 deltoidea, Ell.) — Woods along the mountains, Georgia, and northward. Sept. 



— Stem 3° - h° high. Flowers ycllowisli, or greenish white. 



3. N. Fraseri, DC. Smooth or slightly pubescent ; stem corymbosely 

 jianicled above ; leaves deltoid, mucronate, piimately 3- 7-lobcd. on winged peti- 

 oles ; the upper lanceolate, often entire ; clusters small, tenninal ; involucre 

 greenish, smooth or hairy, of about 8 scales, 8 - 1 2-flowered ; pappus straw- 

 color. — Varies with the lanceolate or oblong leaves mostly sessile, or the upper- 

 most clasping; the 1 2 - 1 5-flowered involucre hirsute with long purplish hairs. 

 (Prenanthes crepidinea, Ell.) — Dry sterile soil, Florida, and northward. Sept. 



— Stem l°-40high. 



4. N. virgatus, DC. Smooth ; stem simple, virgate ; leaves lanceolate, 

 acute, sessile or partly clasping ; the uj)permost small, entire ; the lowest deeply 

 pinnatifid, on margined petioles ; clusters of heads small, racemose ; involucre 

 smooth, purplish, of about 8 scales, 8 - 1 2-flowered ; pappus straw-color. — 

 Damp soil, Florida, and northward. Sept. — Stem 2° - 4° high. Flowers 

 purplish. 



5. N. crepidineus, DC. Smootbish ; stem tall, corymbosely panicled ; 

 leaves oblong-ovate or somewhat hastate, acute, unequally toothed, the lowest on 

 winged petioles; involucre brown, hairj', of 12-14 scales, 20-35-flowered ; 

 pappus light brown. — Mountains of North Carolina and Tennessee. Sept. — 

 Stem 5° -8° high. Lower leaves 8'- 12' long. Flowers yellowish-white. 



86. LYGODESMIA, Don. 

 Heads 5 - 10-flowered. Involucre elongated, cylindrical, of .5-8 linear scales, 

 anil a few short exterior ones. Receptacle naked. Achenia linear, elongated, 

 smooth, striate, not naiTowed upward. Pappus of copious smootbish white 

 hairs in several rows. — Perennial smooth herbs, -with linear or filiform leaves. 

 Heads solitary. Flowers rose-color. 



1. L. aphylla, DC. Stem simple or forking; lowest leaves filiform, 

 elongated; the others remote, small, .and bract-like; heads showy. (Prenanthes 

 aphylla, A'iiW.) — Dry sandy pine barrens, Georgia and Florida. April and 

 May. — Stem 10-2° high. 



87. TARAXACUM, Haller. Dandelion. 

 Heads many-flowered. Involucre double ; the exterior of small spreading 

 scales ; the interior erect in a single row. Receptacle naked. Achenia oblong, 



