2G4 coMrosiT.K. (coMrosiTi: ia.mikv.) 



2. p. ciliaris, !•«• Stom erect, smouth ; loaves linear, liristly-f ringed 

 lu'lciw tlic iiiidiilf ; licails nearly sessile ; rays 3 ; jiajijiiis of tiie disk (ii>\vers of 

 5 laiHiulali- acinninate seales, of the rays only .'i. — Iveys of Caxinitias Hay, 

 youth Florida. Oet. — Stem G'- 1 2' lii<rli- 



74. ANTHEMIS, L. Maxwlku. 



Heads many-flowered, the rays pistillate or neutral. Scales of the hemi- 

 splierieal involmre inii)ricated in few riiws, shorter tiian the disk. Hecejjtaele 

 conie;\l, chaffy tiinjughout, or only at the suiuniit. Acheuia ohovoid, rihbed, 

 smooth. I'appus none. — Branching annuals. Leaves alternate, thrice pin- 

 nately divided. Heads solitary, terminal. Kays white. 



1. A. Cotula, L. Stem 1'' high ; divisions of the leaves linear; scales of 

 the involucre with scarious margins; disk yellow. — Waste places. Intro- 

 duced. May -June. 



75. ACHILLEA, L. Yaurow. 



Heads many-flowered ; the rays pistillate, few aud short. Scales of the 

 involucre imbricated. Receptacle flat or elongated, chaffy. Achenia ob- 

 loug, compressed, margined. Pappus none. — Perennial herbs. Leaves 

 alternate, commonly ])inuately divided. Heads small, corymbose. 



1. A. Millefolium, L. Stems (1° high) simple, pubescent, tufted; 

 leaves lanceolate, bipinnatifid, the divisions linear, .3 - .5-cleft ; corymbs dense, 

 compound ; rays 4-5, white. — Uld fields aud around dwellings. Introduced. 

 May - Sept. 



76. CHRYSANTHEMUM, Tourn. Ox-ete D.msy. 



Heads many-flowered ; the rays numerous, pistillate. Scales of the invo- 

 lucre imbricated, broad, rounded, with scarious margins. Recei)tacle flat or 

 convex, naked. Achenia nearly terete. Pappus none. — Perennial herbs. 

 Leaves alternate, toothed or pinnatifid. Heads solitary, terminating the 

 stem or branches. Pays white. 



1. C. Leucanthemum, L. Stem (6'- 12' high) simple, naked above ; 

 leaves pinnatifid; the lowest spatulateobovate ; the upper lanceolate ; heads 

 showy. — Fields. Introduced. !May - June. 



77. TANACETUM, L. Taxsy. 



Heads many-flowered, discoid ; the flowers all fertile ; the marginal ones 

 chiefly pistillate, .3-5-toothed. Scales of the involucre iml)ricated, dry. Re- 

 ceptacle convex, naked. Achenia angled or ribbed. Pappus a narrow border, 

 or none. — Herbs with alternate dissected leaves, and solitary or corymbose 

 heads of yellow flowers. 



1. T. VUlgare, L. Stem smooth, erect ; leaves bipinnately divided, the 

 lobes serrate ; heads corymbose, numerous ; pappus 5-lobed. — Common in 

 gardens, and sparingly naturalized in North Carolina. ^ — Stem l°-2*' 

 hiffh. 



