﻿482 COMPOSITE. Nabalcs. 



called Gall-of-the- Earth), resembles N. albus in^ts mode of growih, number 

 but appears to pass through var. /?. intS the ordinary state of the plant. 



4. N. nanus (DC.) : glahrous; stem simple, low ; leaves deltoid-hastate, 

 angulate, or variously lobed or cleft, on slender petioles ; heads in small 

 axillary and terminal clusters, forming a strict racemose panicle; involucre 

 (Uvid or blackish-green) 10-13-flowered, of about 8 obtusish proper scales j 



p. 241. Prenanthes alba, var. nana, Bigel. .' fl. Bost. ed. 2. p. 286 ; Torr. ! 

 compencL p. 211 (partly). Harpalvce alba (i. Beck. hot. p. 167. 



Alpine region of the White Mountains of New Hampshire ! and of 

 Essex County, New York ! Aug.-Sept.— Plajit 5-10 inches high. Leaves 



young ; radical and lowest cauline leaves subcordate or hastate-cordate, ob- 

 tuse ;_the^ middle oblong ; the upper lanceolate, mostly entire, tapering into^a 



dingi briS and bmc\lSes ^linea^ °Lvd um^^ 



10-15 obtuse proper scales; the calyculate scales linear, lax, unequal, nearly 

 half the length of the proper involucre ; pappus straw-color.— ZJC prodr. 

 7. p.2n. Prenanthes alba, var. nana, in part, Bigel ! I. c. Sfc 



Higher alpine summits of the White Mountains of New Hampshire ! 

 On the extreme summit of Whiteface Mountain, Essex County, New York, 

 Mr. Macrae ! Aug.-Sept.— Plant 5-8 inches high. Scales of the invo- 

 lucre very obtuse, pubescent-ciliate when young; the calyculate scales 

 nearly similar, but shorter and unequal. Flowers whitish.— Nearly allied 

 as is this species to the preceding, yet the characters we have indicated ap- 

 pear to be constant. According to Mr. Tuckerman, the flowers are odorous 



6. N. virgatus (DC.) : glabrous, somewhat glaucous; stem virgate, very 

 simple ; caulme leaves lanceolate, acute, closely sessile or partly clasping ; 

 tbe upper^entire and gradually reduced to bracts ; the lower toothed or pin- 



and often deeply pinnatifidi the lobeT^lanceETunerr^or^oW^^ heads in 



3ry long and s 



pappus straw-color.— Z)C..' I. c— Prenanthes virgata, Michx. ! Jl. 2. p- no; 

 Willd. ! spec. 3. p. 1533 ; Pursh, fi- 2. p. 498 ; Ell. sk. 2. p. 258. P- sim- 

 plex, Pursh, I. c. excl. syn. P. autumnalis, &c. Groncyv- ^ 

 113; Walt.! Car. p. 193. Sonchus virgatus, Desf., 



places, in sandy fields and pine barrens, New Jersey! to Florida! in 

 the low country. Sept.-Oct— Stem 2-4 feet high ; the naked wand-like 

 raceme 1-2 feet long. Flowers purplish. (' Dr. WitVs Snake-root.' Clayt.) 

 § 2. Heads nodding or erect: involucre calyculate, 12-35-flowered, hirsute. 

 {Leaves mostly undivided.) 



f • (Hook.) : stem virgate, simple, and with the leaves smooth 

 and glabrous; radical and lower cauline leaves oval, oblong, or oblanceolate. 



