COMPosiTAE (COMPOSITE FAMILY) 



869 



1. A. cuspidata (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. ( Troximon 

 Pursh; Nothocalais Greene.) Prairies, 

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

 westw. Apr., May. FIG. 1029. 



2. A. glauca (Pursh) 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. 1030. A. glauca. 



to the Saskatchewan, southw. and westw. FIG. 1030. Achene x iy a . 



1029. A. cuspidata. 

 Head x %. 

 Achene x 1. 



1031. P. carolinianus. 

 Head x %. Achene x 1 



103. PYRRHOPAPPUS DC. FALSE DANDELION 



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 irvpp6s, flame-colored, and irainrfa, 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 

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

 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 Kpyirts, a sandal.) 



* Involucre glabrous. 



1. C. prji.cHRA 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 hi 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. 



- -i- Annuals or biennials; stems leafy. 



3. C. CAPiLiAms (L.) 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. high ; achencs smooth, 10-nerved, slightly nar- 

 rowed at both ends. (C. virens L.) Fields and waste places, 

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



T 



1032. C. capillarts. 

 Achene x 1%. 



