COMPOSITAE (composite FAMILY) 



84' 



1007. M. inotlora. 

 Leaf X iVa. 



N. Y., and Pa.; 



strongly 3-ribbed ; pappus a short crown or border. — Koad- 

 sides and fields, Nfd. to Ct. and Mich. ; abundant in e. Me. and 

 adjacent Canada. July, Aug. (Nat. from En.) Fig. 1007. 



2. M. CuAMOMiLLA L. Similar ; heads smaller, about 2 

 cm. broad; rays shorter; receptacle more convex; achenes 

 le.ss distinctly ribbed ; pappus obsolete. — Roadsides and waste 

 places, Atlantic States, west to O. (Adv. from Eu.) 



8. M. suAVEOLEKS (Pursh) Buchenau. (Pixeapple-wked.) 

 Low ; leaves 2-3-plnnately-parted into short linear lobes ; 

 heads rayless^ short-peduncled ; bracts oval, with broad mar- 

 gins, much shorter than the conical disk ; achenes more 

 terete ; pappus obsolete ; odor of the bruised plant .suggesting 

 pineapple. (31. discoidea DC; M. matricarioides Porter.) 

 — Roadsides and old fields, locally abundant in N. B., N. E., 

 also about St. Louis, Mo.; naturalized, probably from the 



Pacific slope, where it is common. (Established in n. Eu.) 



70. CHRYSANTHEMUM [lourn.] L. Ox-eye Daisy 



Heads many-flowered ; rays numerous, fertile. Scales of the broad and flat 

 involucre imbricated, with scarious margins. Receptacle fiat or convex, naked. 

 Disk-corollas with a flattened tube. Achenes of disk and ray similar, striate. 

 — Annual or perennial herbs, with toothed, pinnatifid, or divided leaves, and 

 single or coryrabed heads. Rays white or yellow (rarely wanting); disk yellow. 

 (Old Greek name, xp^'^'^^^^f^op, i.e golden flower.) 



* Heads large, solitary, terminating the long branches. 



1. C. LeucAnthemdm L. (Ox-eye or- White Daisy, Marguerite, White- 

 weed. ) Stem erect, simple or forked toward the summit; basal leaves spatu- 

 late-obovate, on long slender petioles, the blades crenate-dentate ; middle and 

 upper stem-leaves oblong or oblanceolate, coarsely and 

 regularly crenate or dentate above, with larger spreading 

 teeth at base; heads -1-6 cm. broad; involucral bracts 

 narroio, brown-margined ; rays white (rarely tubular, 

 laciniate, or deformed). — Fields, etc., Nfd. and e. Que. 

 to N. J.; rare southw. June-Aug. 

 (Nat. from Eu.) Fig. 1008. 



Var. piNNATiFiDLM Lccoq & La- 

 motte. Basal leaves pinnatifid. subpin- 

 natifid, or coarsely and irregularly 

 toothed ; middle and upper stem-leaves 

 narrowly oblong or oblanceolate, con- 

 spicuously subpinnatifid at base ; heads 

 usually smaller than in the typical 

 form. (Var, subpinnatifidum Fernald.) 

 — Fields and meadows, throughout ; an 

 abundant and pernicious weed eastw. 

 (Nat. from Eu.) Fig. 1009. 



2. C. segetum L. (Corx Chrysanthemum, Corn Mari- 

 gold.) Similar ; leaves oblong, somewhat clasping, coarsely 

 toothed or pinnatifid; rays golden-yellow; bracts broad and 

 scariotis. — Ballast along the coast, N. B. to N. J.; also in fields 

 near Schenectady, N. Y. (Wibbe). (Adv. from Eu.) 



* * Heads small., corymbed. 



3. C. Parthexium (L.) Bernh. (Feverfew.) Tall, branched, leafy ; Z^rtves 

 bipinnately divided, the divisions ovate, cut; rays white. — Escaped from gar- 

 dens, and naturalized in some places. (Introd. from f]u.) 



4. C. Balsamita L., var. taxacetoides Boiss. (Costmary, Mint Gera- 

 nium.) Leaves oblong, crenate, the upijer sessile, the lower petioled, often 



lOOS. C. Leucantheinum. 

 Leaves x %. 



1009. C. Leuc, 



V. pinnat. 



Leaves x i-^. 



