CHICORY FAMILY 1029 



petioled; blades oblanceolate or oblong, thiiij long-hirsute, especially on the veins 

 and petioles; stem-leaves sessile, lanceolate, less hairy; heads numerous, corym- 

 bose-paniculate; involucres campanulate, 8-10 mm. high; bracts proper narrowly 

 lance-hnear, glabrous or minutely puberulent; pappus sordid. Woods: Sask. — 

 Colo. — Calif. — Yukon. Siibmont. — Mont, Je-Au. 



23. AGOSERIS Raf. Goat Chicory, 



Perennial herbs, with strong taproots, or annuals, mostly acaulescent. In- 

 volucre campanulate to nearly cylindric; bracts imbricate in a few series, the 

 outer broader and shorter. Flowers yellow, orange, or purplish. Achenes fusi- 

 form or oblong, 10-ribbed, narrowed above into a beak. Pappus of numerous 

 capillary white bristles. 



Beak siiort, scarcely more than half as long as the body of the achene, striate through- 

 out. I. Glaucae. 

 Beak long, about as long as or longer than the body of the achene, scarcely striate at 



the middle. 



Body of the achenes tapering at the apex. II. AxiR antiacae . 



Body of the achenes truncate at the apex. III. Retrorsae. 



Annuals. IV. Heteroph yllae . 



I. Gli.\UCAE. 



Leaves decidedly pubescent, even in age. 



Outer bracts linear-lanceolate to oblong, obtuse or acute. 



Outer bracts linear-lanceolate. , , 



Plant tall and stout, 3-5 dm. high; involucres broadly campanulate, about 



2.5 cm. high and 2.5-3 cm. wide. 1. A. taraxacifoha. 



Plant low, 1-2 dm. high; involucres less than 2 cm. high and 1-2 cm. wide. 

 Leaves linear-oblanceolate, 6-10 cm. long; peduncle slender, about 2 dm. 

 ^Igh, 2. A. pubescens. 



Leaves oblanceolate, 4-6 cm. long, often lobed or toothed; peduncles 1 dm. 

 liigh or less. 3. A. aspera. 



Outer bracts oblong or oblong-ovate. , . , , i 



Scape low and stout, about 2 dm. high; leaves oblanceolate, about 1 dm. long. 



4. A. villosa. 



Scape tall, about 6 dm. liigh; leaves 2-3 dm. long; flowers tiu-ning purple. 



5. A. altissima. 



Outer bracts ovate or ovate-lanceolate, acuminate. 6, A. maculata. 



Leaves in age glabrate and glaucous. 



Bracts villous-ciliate, at least on the margins. . 



Involucre turbinate; leaves narrowly linear; flowers light yeUow, tiu^mng pmk. 



7. A. turbinata. 



Involucres campanulate to hemispherical; leaves oblanceolate or lanceolate. 



Inner bracts long-acuminate; plant less than 2 dm. high. 



8. A. attenuaia. 



Inner bracts merely acute. , . . 



Leaves obtuse or acute, entire or rarely toothed. , . . ^ , ^ 



Outer bracts much broader than the inner, often obtusish: plant gener- 

 ally low and leaves short, obtuse. 9. A. pumila. 

 Outer bracts usually not much broader than the mner; plant 3-5 dm. 

 high; leaves long and acute. 10. A. scorzonerae folia. 

 Leaves acuminate, more or less pinnatifid. V^' ■^' agrestis 

 Bracts glabrous; involucres if at all hau-y, tomentose only at the very base. 



Outer bracts oval or ovate, obtusish; leaves 2-3 dm. long, oblanceolate; flowers 



rose-colored ^^- ^' ^o^^^^^- 



Bracts ail linear-lanceolate, acute or acuminate; flowers yellow. 

 Leaves entire or toothed; flowers yellow, tummg pmk. 



Leaves linear-oblanceolate. i^- A, giauca. 



Leaves narrowly linear. ^ „ . ^^; ^- pamnora. 



Leaves pinnatifid, with narrow lobas; flowers yellow, txu-mn^ _ 



Bracts, with loose spreading tips; heads broadly campanulate. 



' 15. A. rosea. 



Bracts appressed; heads more or less turbinate. 16. A. laciniata. 



IT. AtlRANTlACVE. 



Bracts all broad, ovate to elliptical, abruptly acuminate. 17, A. tnontana. 



Bracts, at least the inner ones, linear or linear-lanceolate, acute. 



Involucres more or less regularly imbricate; beak about equalhng the body of 



achenes. 



Leaves densely pubescent. -« . arachnoidea 



Plant low; flowers purple. !»• a flnin 



Plant lull; flowers yellow. ^ ^ . . „ ^^ u. a. etaiu. 



Leaves glabrous or nearly so, somewhat hairy m_NO., zi. 



Flowers reddish brown or deep orange, changmg into P^^^^^l^' „^„,,^^^ 



Bracts with purplish blotches; leaves glaucous. 20. A. purpurea. 



