ORDER 70. COMPOSITE. 401 



Leaves on the upper side green, scabrous and viscid. Scales whitish, with yek 

 low corollas. Aug. 



2 G. polycephalum MX. Erect; Ivs. sessile, linear-lanceolate, acute, scabrous 

 above, whitish tomentous beneath, as well as the paniculate stem ; hds. capitate, 

 corymbous ; scales ovate-lanceolate, acute. CD Common in fields, &c., Can. and U. 

 S. " It is distinguishable by it3 strong, agreeable odor, and its brownish color. 

 Stem 1 2f high, whitish, with a cottony down, much branched. Hds. much 

 larger than in the next. Involucre with whitish scales and yellow flowers. 

 Aug. 



3 G. uliginosum L. CUDWEED. St. diffusely branched, woolly; Ivs. sessile, 

 linear-lanceolato ; hds. small (I" wide) in terminal, crowded, leafy clusters ; scales 

 obtuse, yellowish or brownish ; ach. smooth. (I) A small, spreading plant, clothed 

 with whitish down, common in sandy places where water occasionally stands, N., 

 Mid. and W. States. Stem 4 6' high. Leaves numerous, acute, narrowed at 

 the base. Scales of the involucre oblong, obtuse, yellowish. Aug. 



4 G. purptireum L. St. erect, simple or branched from the base, tomentous ; 

 Ivs. linear-spatulate or obovate-spatulate, downy -canescent beneath, green above ; 

 hds. sessile, crowded, terminal and axillary; scales acuminate. CD Grows in 

 sandy fields and pastures, K H. to Ind. and La. Stem 8 12' high, sending out 

 shoots at the base. Heads with tawny, purplish scales and yellow corollas. 

 June. 



5 G. supinum Yillars. Cxspitous, woolly; Ivs. linear; hds. few, oblong, in a 

 spicate raceme or solitary ; scales acute, brown; pistillate Jls. in but one row. 

 White Mts., N. H. (NuttalL) Sts. 2 to 4' high. 



79. ANTENNA'RIA, Br. EVERLASTING. (Name in allusion to the 

 bristles of the pappus, which resemble antennae.) Heads dioecious ; in- 

 volucre of imbricate, colored scales ; pistillate corollas filiform ; recep- 

 tacle subconvex, alveolate ; pappus a single row of bristles. 2 Tomen- 

 tous. Lvs. alternate, entire. Hds. corymbous, with white or brownish, 

 never yellow scales. (Gnaplialium L.) 



1 A. margaritacea Br. St. erect, simple, corymbously branched above ; Ivs. linear- 

 lanceolate, acute, 3-veined, sessile, woolly beneath, stem woolly ; corymbs fasti- 

 giate; scales elliptic, obtuse, opaque, white. U Fields and pastures, U. S. and 

 Brit. Am. St. 1 to 2f high, and with its numerous, scattered Ivs. clothed with 

 white and cotton-like down. Hds. numerous, hemispherical, fadeless. Fls. yel- 

 low. Jl. Named for its dry, imperishable, pearl-white scales. 

 ' A. plant aginifolia Br. MOUSE-EAR. EVERLASTING. Stolons procumbent ; st. 

 sirnpk ; radical Ivs. oval, obovate or spatulate, mucronate, 3-veined, silky-canes- 

 cent, st. Ivs. small, lanceolate ; scales ovate, obtuse. U Borders of woods, &c., 

 U. S. and Brit. Am., flowering in early spring. "Whole plant whitish with down. 

 St. 5 to 8' high, often with stolon's at base. Et. Ivs. much larger than those of 

 the stem. St. Ivs. few, bract-like. Hds. in a terminal, dense cluster, purplish 

 white. Feb. May. (A. dioica Br.) 



80. FILA'GO, Tourn. COTTON ROSE. CUDWEED. (Apparently 

 from the Latin flum, a thread ; on account of the cottony hairs.) 

 Heads heterogamous ; involucre of a few villous scales ; marginal 

 flowers ? ; receptacle columnar, naked at the apex, chaffy at base ; 

 achenia terete, central ones with a hairy pappus. Downy-canescent 

 kerbs. Lvs. alternate, entire. 



F Germanica L. St. dichotomous or proliferously branched above ; Ivs. linear- 

 lanceolate, acute, crowded, erect ; hds. few-flowered, in dense, capitate clusters, 

 terminal and lateral ; scales cuspidate, passing insensibly into the pales of tho 

 receptacle, each with a pistillate flower in the axil. GO Fields and roadsides, 

 Mass., N. Y. to Ya. St. 6 to 10' high. Scales straw-color, with a green lino 

 outside. JL Oct. Eur. 



