

COMPOSITE. (COMPOSITE FAMILY.) 251 



8 scales, 8 - 1 2-flowered ; pappns light brown ; flowers white or cream-color. 

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

 3 -4 high. 



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

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

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

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

 5 - 6-flowered ; pappus dirty white or straw-colored. Varies with the wavy- 

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

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



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-lobed, on winged peti- 

 oles ; the upper .lanceolate, often entire ; clusters small, terminal ; 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 crepidinea, Ell.) Dry sterile soil, Florida, and northward. Sept. 



Stem l-4high. 



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

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

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

 smooth, purplish, of about 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, corymbosely panicled ; 

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

 winged petioles; involucre brown, hairy, 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, 

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

 smooth, striate, not narrowed upward. Pappus of copious smoothish 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, Nutt.) Dry sandy pine barrens, Georgia and Florida. April and 

 May. Stem 1- 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, 



