COMPOS1TAE (COMPOSITE FAMILY) 



8C9 



1. A. cuspidate (Pursh) Steud. Scape 3 dm. high, 

 from a thickened caudex ; leaves lan- 

 ceolate, elongated, tapering to a sharp 



point, entire, woolly on the margins ; 

 bracts of the involucre lanceolate, sharp- 

 pointed ; achene beakless. (Troshit'-n 

 Pursh ; Nothocalais Greene.) Prairies, 

 Wise, and n. 111., westw. and north- 

 westw. Apr., May. FIG. 1029. 



2. A. glauca (l*ursh) Steud. Scape 

 3-6 dm. high ; leaves linear to lanceo- 

 late, entire to dentate or laciniate ; head 

 often pubescent or villous ; achene long- 

 beaked. (Troximon Pursh.) Minn. 



to the Saskatchewan, southw. and westw. FIG. 10oO. 



1029. A. cuspidate. 

 Ht-:ul x%. 

 Acbene x 1>. 



1030. A. glace*. 

 Achene x 1^. 



103. PYRRHOPAPPUS DC. FALSE DANDELIOW 



Heads, etc., nearly as in Taraxacum, but the soft 

 pappus reddish or rust-color, and surrounded at base 

 by a soft-villous ring. Mostly annual or biennial 

 herbs, scapose or often branching and leafy below. 

 Heads solitary, terminal. Flowers deep yellow. (Name 

 composed of wi/5/S6j, flame-colored, and TOTT^S, pappus.) 

 SITILIAS Raf. 



1. P. carolinianus (Walt.) DC. Annual or bien- 

 nial, branching, 1-9 dm. high ; leaves oblong or lanceo- 

 late, entire, cut or pinnatifid, the stem-leaves partly 

 1031 P carolinianus clasping. (Sitilias Raf.) Sandy fields, Del. to Mo., 

 Head x%.' Achene x 1%. Kan., and southw. Apr.-July. FIG. 1031. 



104. CREPIS L. HAWK'S BEARD 



Involucre few-many-flowered, commonly of a single row of equal bracts often 

 becoming thickened at base. Pappus copious, white, soft. Annuals or bien- 

 nials, not pilose. Otherwise as Hieracium. (The Greek name of some plant, 

 from Kpijrls, a sandal.) 



* Involucre glabrous. 



1. C. PL</HRA L. Annual, 0.3-1.5 m. high, pubescent below, leafy near 

 the base ; leaves pubescent, oblong or oblong-lanceolate, runcinate-dentate, the 

 lower on margined petioles, the upper somewhat clasping ; heads in a loose 

 naked panicle ; involucre 1 cm. high. Locally established in Va. (Adv. 

 from Eu.) 



* * Involucre pubescent. 



- Perennial ; scapose or nearly so. 



2. C. runcinata (James) T. & G. Stem 3-9 m. high, glabrous or somewhat 

 glandular-hispid ; leaves rosulate, obovate-oblong or oblong-spatulate, repand or 

 runcinate-dentate, glabrous or slightly hispidulous ; heads loosely corymbose, 

 2 cm. broad ; involucre hirsute, 1 cm. or so high. On saline soil, Man. to la.., 

 and westw. June, July. 



*- -- Annuals or biennials; stems leafy. 



3. C. CAPiLLXms (T,.) Wallr. Ascending, 3-6 dm. high; 

 leaves lance-spatulate, laciniate-pinnatifid or merely dentate, 

 the cauline with sagittate-auriculate bases ; heads small, invo- 

 lucre 6-7 mm. hich ; achenes smooth. }0-nerced, slightly nar- 

 ro;w? at both ends. (C. virens L.) Fields and waste places, 

 becoming frequent. (Adv. from Eu.) FIG. 1032. 



T 





