194 
45. COMPOSITE. 
Order XLV. COMPOSIT.E. 
FI. surrounded by an involucre formed of scales (phyllaries), 
collected together in a head looking like a single flower. Cal. 
superior ; limb inconspicuous or forming a toothed bristly or 
feathery pappus. Cor. tubular or ligulate ; both kinds in the 
same head or only one of them. Stam. 5, inserted in the tube ; 
filaments free : anthers united into a tube surrounding the style, 
often with tails at their base. Fr. indehiscent, dry, with an 
erect seed without perisperm. — No stipules. 
The following arrangement of the genera is different from that 
used in the arrangement of the species. In cases of difficulty 
they may both be used with advantage. 
Suborder T. CORYMBIFERiE. 
Flowers of the disk tubular and perfect ; marginal flowers 
often ligulate and female or neuter. Style not swollen below 
its branches. — Juice watery. 
A. Pappus more or less liairlike. 
* Anthers without bristles at their base. 
t Leaves opposite, caidine. 
(1.) 1. EuPATOEiUM. Heads few-flowered. Phyll. imbri- 
cate, oblong. Receptacle naked. FL all tuhular-i\xm\(^\- 
shaped,j[?e9/i?c< (reddish purple). Anth. included. Branches 
of the style exserted, cylindrical, blunt. 
tt Leaves radical. 
(2.) 2. Pet..\site«. //mr7.« many-flowered. Fern. fl. filiform, 
ol)liquely truncate or shortly ligulate, in many rows in the 
fem. heads, none or in 1 row in the male heads. Male fl. 
tubular, few and central in the fem. heads, occupying the 
whole disk in the male heads. Receptacle naked. Phyll. 
in one row. — Suhdioenous. Heads panicled. 
(3.) 3. TussiLAGO. Heads many-flowered. Fl. of ray nar- 
rowly ligulate, fem. in many rows ; of disk male, tubular, 
5-cleft. Receptacle naked. Phyll. in 1 row, with mem- 
branous margins. — Heads solitary. 
