192 COMPOSITE 



woolly herbs, with entire alternate leaves, and corymbose heads with 

 white scales and yellowish corollas. 



1. A. maRgaritacea, II. Brown. Pearly Everlast- 

 ing. 



Stem erect, tomentose ; Icav cs linear lanceolate, acuminate, 1-norvcd, sessile t/e-r 

 tile Jteaels often- with a few imperfect staminate flowers in the centre ; scales of the 

 pearly white involucre obtuse or rounded. 



Dry hills and woods, common. Aug. Stem 1 to 2 feet high, and with the nu- 

 merous scattered leaves clothed with white and cottony down, corymbose at the 

 summit with many heads. Heads hemispherical, pedicellate. Involucre pearly 

 white. Fkwcrs yellow. Slightly fragrant. 



.2. A. .plantaginifolia. Hook. . Plantain -leaved Ev- 

 erlasting. 



Stem simple, with procumbent shoots; leaves ?ilhy-woolly when young, at length 

 green above and hoary beneath ; radical leaves oval, petiolate, 3-nerved ; stem leavts 

 linear; heads in a small crowded corymb. 



Wooded banks and sterile hills. April, May. Stem 3 to 8 inches high, often 

 branched at the base into several from the same root. Hoot leaves much larger 

 than those of the stem, ovate or oval-spatulate. Stem leaves few, bract-like. Jfccds 

 clustered, terminal, purplish white. Scedes of the mostly white involucre obtuse, 

 in the sterile, and acutish and narrow in the fertile plant. 



47. FILAGO. Tourn. Cotton "Rose. 



Lat. filum, a thread ; in allusion to the cottony hairs that cover these plant*. 



Heaps many-flowered, heterogenous -, the terminal or 

 central fioicers numerous, pistillate, perfect or infertile, tu- 

 bular, 4 to 5-toothed, the cuter flowers filiform, pistillate, 

 scarcely-toothed. Involucre scales few, woolly. Recep- 

 tacle elongated, filiform, naked at the summit, chaffy to- 

 wards the margins or hase. Papfus of the central flowers 

 filiform, of the outer none or dissimilar. — Low annual branch- 

 ing woolly herbs with entire, alternate leaves and small hecdi of 

 whitish or yellowish flowers in capitate clusters. 



F. Germanica, L. Hcrba Imjria. German Cud-u-etd. 



Stem erect, short, dichotomous or proliferously branched ; leaves linear-Ianceo- 

 iate. acute, tomentose, crowded ; heads woolly in capitate clusters, terminal and 

 lateral ; scales cf theinvolucre awncd. 



Dry fields ; introduced from Europe rnd sparingly naturalized. July — Aug. — 

 Stem 4 to 8 inches high, woolly-tomentose, clothed with iinear-hu-.ceolatc and ay- 

 right crowded leaves, producing a capitate cluster of woolly heads, from which 

 rite one or more branches, each terminated by a sii '.n the 



same manner. 



SUBTRIBE 6. SENICIONOlDEiE. 



Papput soft and capillary. Anthers without tails at the base. RtctptaoU 

 Bead* radiate or discctd. Leaves mostly alternate. 



48 ERECHTHITES. Raf. Fire-weed. 



An ancient ncjnc of some species of seniciQ, 



