COMI'OSIT^E. (CUMI'OSITK FAMILY.) 227 



oppo<»\t« rtmmonly hcart-slinpcd and pctiolcd leaves, and eorymlwse-paniclcd 

 flusl'-'^ol'Tcd flowers. (Named tor Prof. Mlbin, of l'raj;,Mic.) 



*• M. scandens, L. Nearl\ smootli, twininu:; leaves somcwliat triangu- 

 liT-li'-art-shnped or liallienMorni, pointed, tootlied at the base. — Copses along 

 streams, E. New lui;;l;intl to Kentucky and southward. July-Se])t. 



8. CONOCLINIUM, DC. Mist-ii.ower. 



Heads many-flowered. Involuere l)ell-shaped, the nearly' equal linear-awl- 

 sliaped seales somewhat imbricated. Receptacle conical ! U^erwisc as in I'^u- 

 patorium, of which it is ratlier a section. — Perennial erect herbs, with opposite 

 petioled leaves, and violet-pnrplc or blue flowers in crowded terminal coryml).s. 

 (Name formed of Kou'oy. fi conr, and kXivt], a bed, from the conical receptacle.) 



I. C. eCBlestiuum, DC. Somewhat pubescent (1°- 2° hiirh) ; leaves tri- 

 anfrularovate and sliulitiy heart-shaped, coarsely and bluntly toothed. — Rich 

 soil, Pennsylvania to Michij^an, Illinois, and southward. Sept. 



9. NARDOSMIA, Cass. Swekt Coltsfoot. 



Heads many-flowered, somcAvhat dioecious: in the sterile plant with a sin}j:le 

 row of ligulatc pistillate ray-flowers, and many tubular ones in the disk ; in the 

 fertile plant with many rows of minutely ligulatc ray-flowers, and a few tubular 

 perfect ones in the centre. Scales of the involucre in one row. Hecejitacle flat. 

 Achenia terete. Pa])pus of soft capillary bristles, louf^er and coj)ious in the fer- 

 tile flowers. — Perennial woolly herbs, with the leaves all from the rootstock, 

 the scape with sheathinif scaly bracts, bearing- heads of purplish or whitish fra- 

 grant flowers, in a corymb. (Name from vaphos, siuk-eiuini, and oa-fir], odor.) 



1. N. palm^ta, Hook. Leaves rounded, somewhat kidney-form, white- 

 woolly beneath, ])almately and dee])ly .5-7-lobed. the lobes toothed and cut. 

 (Tussila.ffo palmata, Ait. T. frigida, Dijjil.) — Swamps, Maine and Massachu- 

 setts to Michigan and northwestward: rare. April, May. — Full-grown leaves 

 (6' -10' broad). 



10. TUSSILAGO, Tourn. Coltsfoot. 



Head many-flowered ; the ray-flowers narrowly ligulate, pistillate, fertile, in 

 many rows; the tubular disk-flowers few, staminate. Scales of the involucro 

 nearly in a single row. Receptacle flat. Fertile achenia cylindrical-oblong. 

 Pappus capillary, copious in the fertile flowers. — A low ])erennial, with hori- 

 zontal creeping rootstocks, sending up simj)lc .scaly scapes in early spring, bear- 

 ing a single head, and producing rounded-heart-shaped angled or toothed leaves 

 later in the sea.son, woolly when young. Flowers yellow. (Name from tiutsis, 

 a cough, for which the j)lant is a reputed remedy.) 



1. T. FiRFAUA. L. — Wet places, and along brooks, New England, New 

 York, and Pennsylvania; thoroughly wild. (Nat. from Eu.) 



11. ADENOCAULON, Hook. Adk.nocailon. 



Heads 5- 10-flowcred; the flowers all tubular and with similar corollas ; the 

 marginal ones pistillate, fertile ; the others stiminatc. Scales of the involucre 



