COMPOSITE. 16Ji 



Sub-tribe 2. TUSSILAGLNEiE. 



Heads radiate ; flowers dissimilar, or dioecious. 



8. NARDOSMIA. Cass. 



Gr. nard'os, spikenard, and osna>. odor. 



Heads many-flowered, somewhat dioecious. Sterilb 

 flowers of the ray in a single series, ligulate, pistilate, 

 those of the disk tubular. Fertile flowers with many 

 rows of minutely ligulate ray-flowers, and a few tubular per- 

 fect ones in the centre. Receptacle flat. Achenia terete. 

 Pappus of soft capillary bristles, longest and most copious 

 in the fertile flowers. — Perennial woolly herbs, with radical 

 leaves, the scape with sheathing scaly bracts, and the heads of 

 purplish fragrant flowers in a corymb. 



N. palmata, Hook. Palmate Sweet Colt's-foot. 



Leaves rounded or kidney-form, palmatcly 5 to 7-lobed, the lobes toothed and 

 cot, white, woolly beneath. 



Swamps; rare. May. #xjpe 1 to 2 feet high, stcut, clothed with numerous 

 sheathing scales. Leaves lur^e, G to 10 inches broad. Heads numerous; iu a 

 coryinLo.se thyrse. 



9. TUSSILAGO. Tourn. Colt's-foot. 



Lat. tussis, a cough, for which the plant is a reputed remedy. 



Heads many-flowered. Ray flowers narrowly ligulate ; 

 pistillate, fertile, in many rows; the tubular disk flowers few, 

 staminate. Scales of the involucre nearly in a single 

 row. Receptacle flat. Fertile achenia cylindric-ob- 

 long. Pappus capillary, copious, in the fertile flowers. — A 

 low perennial, with horizontal creeping rootstocks, radical 

 leaves, and- simple scaly scapes bearing a single head of yellow 

 flowers, 



T. Farfara, L. Common Colt's-foot. 



Leaves rounded-hrr.rt-Ehapec', radical ; forcers with very narrow rays. 



Wet places, trocksides. A low plant sending up a single scape about .1 inches 

 high -n March or April, with a single, terminal, many-rayed head of yellow flowers 

 before a leaf is to be seen. Leaves arising after the flowers are withered, 4 to j 

 inches broad, cordate angular, toothed, dark-green atove, woolly underneath, ou. 

 long petioles. 



Tribe 3. ASTEROIDE^. The Aster Tribe. 



Heads radial*, rarely discxd; tranches of the style more cr less flaiUintd anl. 

 linear, minuUly and equally pubescent alcve; Icates mostly alternate. 



