ORDER 70. COMPOSITE. 185 



8 A. DRAcfrNCCLUS. Tarragon. Glabrous ; Ivs. lin.-lanceolate, lower trifid ; heads glo- 

 bous. From Siberia. 3f. A garden salad. Give a rich fragrance to vinegar. 



A. dracunculoides Ph. Canescent when young, branched ; Ivs. lin.-filiform, the 



radical often trifid*; lids, small, globular ; inner scales roundish, outer oblong. 2* N-W. 



10 A. borealis Pal. Tufted, silky-villous, simple; lower Ivs. petiolate, lance-linear, 

 entire at base, ternately, pinnately, or bipinnately parted at apex with lin. lobes ; hds. 

 hemispherical ; scales colored. U Shores of Lake Superior, N. and W. 6-12'. 



11 A. Caiiadensls MX. Sea W. Glabrous (mostly) ; Ivs. 1-2-pinnatiaect with linear 

 eeg. ; hda. roundish, sessile, in a pan. of glomerules. il Lake shores, N. 2-4f. Hds. 1". 



12 A. caudata MX. Glabrous, simple, densely paniculate; Ivs. 3-2- 1-pinnatisect with 

 alternate, filiform segm. ; heads globous, pedicellate, erect. @ Coast, N. H. to Ga. 4f. 



77. SOLIVA, R & P. Invol. of 515 scales in 1 row. Recep. flat, 

 naked. Fertile fls. in several rows, apetalous ; ? fls. few, interior, with a 

 3-5-toothecl corolla. Cyp. obcompresserl, tipped with the persistent style 

 and no pappus. Little matted herbs with pinnatifid Ivs. and sessile heads. 

 S. nasturtiifolia DC. Lf. lobes 59, oblong, obtuse ; ec. 1015; fr. obconic, rugous, 



crowned with a dense tuft of wool instead of a pappus. Sandy shores, S. 13'. 



78. GNAPHALIUM, L. CUDWEED. EVERLASTING. Heads discoic., 

 lieterogamous. Invol. imbricate with scarious, colored scales. Marginal 

 fls. ? , subulate, mostly in several rows ; central fls. 5 . Ilecep. flat, naked. 

 Pappus a single row of scabrous, hair-like bristles. Herbs generally 

 clothed with whitish wool. Leaves alternate, entire. 



* Heads in terminal corymbous clusters. August Nos. 13 



* Heads in axillary, somewhat spicate clusters Nos. 4, 5 



1 G. decurrenslves. Lvs. decurrent, linear-lanceolate, very acute, naked above,white 



and woolly beneath ; fls. in dense, roundish, terminal clusters. 11 Hilly pastures, N. 

 Eng. to Penn. and Mich. 2f. Lvs. green above. Fls. yellow, scales white. 



2 G. polyceplialum MX. Woolly; Ivs. sessile, linear-lanceolate, acute, scabrous 



above ; hds. capitate, corymbous ; sc. ovate-lanceolate, acute. Dry. l-2f. Fragrant. 



3 G. uligiiiosum L. Cudweed. St. diffusely branched, woolly ; Ivs. sessile, linear- 



lanceolate ; hds. small (1" wide), in terminal, crowded, leafy clusters ; scales obtuse, 

 yellowish or brownish ; fruit smooth. (T) Moist hollows, N. M. W. 4 6'. 



4 G. purpureum L. Erect ; Ivs. linear- or obovate-spatnlate, canescent beneath, green 



above ; hds. sessile, crowded ; sc. acuminate, purplish. Dry fields. 812'. June. 



5 G. supinum Villars. Caespitous, woolly ; Ivs. linear; hds. few, oblong, in a spicate 



raceme or solitary ; scales acute, brown. White Mountains. 2 4'. Rare. 



6 G. FCETIDUM, from S. Africa, has yellow heads, entire, clasping leaves. 2f. Hardy. 



79. ANTENNARIA, Br. EVERLASTING. Heads ? $ . Invol. of im- 

 bricate, colored scales. $ Cor. filiform. Recep. subconvex, alveolate. 

 Pap. a single row of bristles. U Tomentous. Lvs. alternate, entire. Hds. 

 corymbous, with white or brownish, never yellow scales. 



1 A. margaritacca Br. Woolly-white, erect, corymbed above ; Ivs. lin.-lanceolate, 



3-veined ; scales elliptic, obtuse, pearl-white, fadeless. Fields. 1 2f. July; 



2 A. plantaginifolla Br. Mouse-ear E. Simple, with running stolons ; leaves oval 



to spatulate, the cauline small, bract-like ; hds. in a close terminal cluster, purplish, 

 all ? in some plants, all $ in others, in early Spring. Borders of woods. 58 . 



80. FILAGO, Toum. COTTON ROSE. Heads heterogamous. Recep. 

 columnar, naked at top, chaffy below, with pales resembling the scales, 



