COMPOSITE. (cOMrO'SlTE FAMILY.) 251 



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

 Open woods in the upper districts of Georgia, and northward. Sept. — Stem 

 30_40 high. 



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

 above ; leaves thin, ovate or cordate, petiolcd, acuminate, denticulate, or the 

 lower ones palmately 3 -5-cIeft or parted ; heads in small axillary and terminal 

 clusters, forming a long panicle; involuci-c slender, greenish, of about 5 scales, 

 .5 - 6-flowcred ; jjappus dirty white or straw-colored. — Varies with the wavy- 

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

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



— Stem 3° - 5° high. Flowers yellowish, or greenish white. 



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

 panicled above ; leaves deltoid, mucronate, pinnately 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 - 12-flowered ; pappus straw- 

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

 most clasping; the 12-15-flowered involucre hirsute with long purplish hairs. 

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



— Stem l°-40 high. 



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

 acute, sessile or partly clasping- ; the uppermost small, entire ; the lowest deeply 

 })innatifid, on margined petioles ; clusters of heads small, racemose; involucre 

 smooth, purplish, of al)out 8 scales, 8 - 12-flowered ; pappus straw-color. — 

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

 purplish. 



5. N. crepidineus, DC. Smoothish ; stem tall, corj-mbosely panicled ; 

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

 winged petioles; involucre brown, hairy, of 12-14 scales, 20-3.5-flowered ; 

 pappus liglit bro\vni. — IMountains of North Carolina and Tennessee. Sept. — 

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



86. LYGODESMIA, Don. 

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

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

 smooth, striate, not narrowed upward. Pappus of copious smootiiish white 

 liairs 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, iVuZ<.) — Dry sandy pine barrens, Georgia and Florida. April and 

 May. — Stem 1° - 2° high. 



87. TARAXACUM, Haller. Danrelion. 

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

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



