composit-t:. (co:\rposiTK faafilv.) 200 



50. ANTENNABIA, G.-urtn. Eveklastixg. 



Heads inany-flowerc'il, di(i;i-iou.s or nearly t^o ; tlie flowers all tubular : jiistil- 

 late corollas very slender. Scales of the involucre dry and scarious, white or 

 colored, imbricated. Reccptaele convex or flat, not chafly. Pappus a .sin'rlc 

 row of bristles, in the fertile flowers capillary, and in the sterile thickened and 

 club-shaped or barbelhite at the suniniit. — I'crennial vvliite-woolly herbs, witli 

 entire leaves and corynibcd (rarely single) heads. Corolla ycllowi.^li. (Name 

 from the resemblance of the sterile pappus to the antemm of certain insects.) 



1. A. margarit^Cea, R. Brown. (Pkarly EvEnLASTiNC. Stem erect 

 (l°-2° hi-b), roiyiidiose. at the summit, with many hciuls, l(-(i/(/ ; leaves lincar- 

 lanccolatc, ta[)er-poiuted, sessile ; fertile heads often with a few impcrl'ect stami- 

 iiatc flowers in the centre ; scales of the pearly-white involucre obtuse or rounded. 

 — Dry hills and woods ; common northward. Aug. 



2, A. plantaginifblia, Hook. (rLANXAiN-LEAVKD Everlasting.) 

 Sjircadimi iy oj/'sds mid runntrs, low (4' - 10' high) ; leaves silky-woolly when 

 young, at length green above and hoary beneath ; those of the simple and scape- 

 like flowering .stems small, lanceolate, appressed ; the radical obovatc or oval- 

 spatulate, petioled, ample, 3-ncrvcd ; lieads in a small crowded corymb ; scales 

 of the (mostly white) involucre obtuse in the sterile, and acutish and narrower 

 in the fertile plant. — Var. moxocei'iiala is an occasional state, with a single 

 larger head. — Stenile knolls and banks : connnon. March - May. 



60. FILAGO, Tourn. Cottox-Rose. 



Heads many-flowcrcd ; tlie flowers all tubular, the central ones perfect, but 

 often infertile ; the others j)istillate, very slender and thread-form. Scales of 

 the involucre few and woolly. Receptacle elongated or top-shajjcd, naked at the 

 summit, but chaffy at the margins or toward the base ; the chaff resembling the 

 ])ropcr involncral .scales, each covering a single ])istillate flower. — Pappus of 

 the central flowers capillary, of the outer ones mostly none. — Annual, low, 

 branching woolly herbs, with entire leaves, and small heads in capitate clusters. 

 (Name from Jiliim, a thread, in allusion to the cottony hairs of thcr^c plants.) 



1. P. GERM.iMCA, L. (1Ii:ri$a Imima.) Stem erect, short, clothed with 

 lanceolate and.npri^'ht crowded leaves, i)roducing a capitate cluster of woolly 

 heads, from which rise one or more branches, each terminated liy a similar 

 head, and so on: — hence the common name applied to it by the old botanists, 

 as if the offspring were nndutifully exalting themselves above the parent. — . 

 Dry flelds. New York to Virginia. July -Oct. (Nat. from Eu.) 



61. ERECHTHITES, Ral. Fireweed. 

 Heads many-flowcrcd : tiic flowers all tubular an<l fertile ; the marginal jiis, 

 tillrtte, with a slender corolla. Scales of the cylindrical involucre in a single 

 row, linear, acute, with a few small bractlets at the base. Receptacle naked. 

 Achenia oblong, tapering at the end. Pa])iius copious, of very tine atid white 

 soft hairs. — Erect and coarse annuals, of rank smell, with alternate simjile 

 leaves, and panicuhite-corymbed heads of whitish flowers. (The ancient name 

 of some spoeics of Groundsel, probaV)ly called after Ercrhlliciis.) 



