1020 CICHORIACEAE 



Krigia amplexicaulis Nutt. Moist woods: Ont. — Ga. — Colo. — Man. Plain — 

 Submont. 



8. CICHORIUM (Tourn.) L. Chicory. 



Herbs with stiff branching stems and mostly basal leaves, the stem-leaves 

 reduced and bract-like. Involucres cylindraceous ; bracts in 2 series, the outer 

 somewhat spreading, the inner erect and partly enfolding the achenes at the base. 

 Flowers blue, rose, or pink. Achenes 5-angled, trimcate and beakless at the 

 apex. Pappus of 1-3 series of short blunt squamellae. 



1. C. Intybus L. Perennial, v.ith a taproot; stems slightly hispid, 3-10 dm. 

 high; basal leaves spreading, runcinate-pinnatifid, spatulate in outline, 7-15 cm. 

 long; stem-leaves smaller, lanceolate or oblong, lobed or entire, clasping and 

 auricled at the base; heads numerous, 1-4 together in sessile clusters; bracts 

 proper about 8, glandular-ciliate. Roadsides, fields, and waste places: N.S. — 

 N.C. — Calif. — B.C.; nat. from Eu. Plain — Submont. Jl-S. 



9. UROPAPPUS Xutt. 



Acaulescent annuals. Leaves basal, narrow. Involucres narrowly turbin- 

 ate; bracts nearly equal, subtended by a calyculum of small ones. Flowers 

 yellow; ligules short. Achenes fusiform, produced into a beak. Pappus of 5 

 scarious squamellae, 2-cleft at the apex, with an awn between the lobes. 



Awns 1-2 times as long as the short pappus-squamellae. 1. U. macrochaclus. 



Awns scarcely half as long as the long pappus-squamellae. 2. U. linearifolius. 



1. U. macrochaetus (A. Gray) Greene. Leaves mostly near the base, 

 linear, entire, sinuately and saliently toothed or lobed; peduncles 2-4 dm. long; 

 involucres narrowly turbinate, 15-20 mm. high; squamellae lanceolate, about 

 2 mm. long, cleft to the middle; awns 6-7 mm. long. Microseris macrochaeta A. 

 Gray. Meadows: Ore. — ^Ida. — s Calif. Son. Ap-My. 



2. U. linearifolius (DC.) Nutt. Leaves near the base, somewhat pubescent 

 when young, narrowly linear, entire or with divaricate linear lobes; peduncles 

 1-3 dm. long, usually thickened obove; involucres turbinate, 18-25 mm. high; 

 bracts Unear-lanceolate, acuminate, the outer about haK as long as the inner; 

 squamellae 7-9 mm. long, linear-lanceolate, notched at the apex; awns 3-4 

 mm. long. M. linearifolia A. Gray. Low ground: Ida. — -N.M. — Calif. — Wash. 

 Son. Mr-Je. 



10. NOTHOCALAIS (A. Gray) Greene. 



Acaulescent perennial, of the habit of Agoseris, with narrow, entire or pinna- 

 tifid leaves. Involucres oblong-campanulate ; bracts in 2-3 series, nearly equal, 

 without calyculum. Receptacle naked. Flowers yellow. Achenes attenuate- 

 fusiform, beaked. Pappus of 20-30 narrow linear-lanceolate, in one species 

 nearly bristle-like, squamellae tapering into an awn. 



Bracts Unear-lanceolate, scarcely spotted. 



Pappus dl-stinctly paleaceous, of narrow squamellae gradually attenuate. 



1. N. troiimoides. 



Pappus of bristles only sUghtly broader and flattened at the base. 2. N. cuspidata. 

 Bracts ovate or ovate-lanceolate, acuminate, conspicuously spotted. 3. N. nigrescens. 



1. N. troximoides (A. Gray) Greene. Leaves narrowly liiiear-lanceolate, 

 undulate, attenuate; scape puberulent when young, 1-3 dm. high; involucres 

 about 2 cm. high; bracts narrowly Hnear-lanceolate, somewhat jxirple-tinged on 

 the midrib, gradually attenuate; pappus of 20-25, narrowly linear-lanceolate 

 attenuate scales. Microseris troximoides A. Gray. Wooded hills and plains: 

 Mont. — Utah — Calif. — Wash. Plain — Submont. Aji-Je. 



2. N. cuspidata (Pursh) Greene. Leaves somewhat glaucesccnt, linear- 

 lanceolate, caudately attenuate, more or less wavy, villous-tomentulose on the 

 margins when young; scajie 6-30 cm. long; invohicres turbinate, about 2 cm. 

 high; bracts lanceolate or linear-lanceolate, gradually acuminate, somewhat 

 tinged with purfjle; pappus of 40-50 bristles. Troximon cuspidulum Pursh. 

 Prairies and plains: Wis. — Mo. — Colo. — S.D. Plain — Submont. Ap-Je. 



