oiohoeiace^;. 219 



Oedbk lvix. CICHORIACE/E. 



Plants with alternate leaves and a milky narcotic juice; as to inflor- 

 escence closely analogous to Composite, though not naturally allied to 

 them very closely; much nearer Lobeliacese. Flowers in the head all 

 ligulate, the ligules 5-toothed at apex. Anthers appendaged at summit, 

 at base sagittate, or abruptly acuminate-setaceous. Style-branohes 

 slender, obtusish or aoutish, minutely papillose. Pollen-grains perfectly 

 smooth and distinctly 12-sided. 



* Pappus of plumose bristles. 

 Receptacle not chaffy; 



Achenes truncate Ptiloria 2 



f flowers white Nehoseris 3 



" beaked \ purple Tragopoqon 4 



[_ " yellow Pickis 9 



Receptacle chaffy Hypoch#:rt8 5 



* * Pappus paleaceous, awned or awnless. 



Pappns-palese awnless Cichorium 1 



" " awned; 



Awn from a notch in the palea Uropappus 6 



Palea tapering into the awn; 



Annuals; achenes oblong or turbinate Mioroseris 7 



Perennials; achenes cylindric Scorzonella 8 



* * * Pappus of capillary bristles only. 



Achenes not compressed; 

 Achenes truncate; 



Pappus soft, deciduous , Malacothrix 10 



Pappus firmer, persistent; 



Pappus dull- white or darker Hieracium 11 



" bright-white Crepis 12 



Achenes slender-beaked; 



10-ribbed or -angled Agoseris 18 



" 4— 5-angled Taraxacum 14 



Achenes compresBed; 



Beaked or at least attenuate above Lactdca 15 



Not beaked or narrowed above Sonchus 16 



1. CICHORIUM, Theophr. Perennials, leafy at base; the tall stem 

 and branches with reduced foliage, bearing several heads of blue flowers 

 in the axils. Bracts of the involucre in 2 series; the inner erect, partly 

 enfolding the subtended achenes, the 4 or 5 outer more spreading. 

 Achenes short, truncate, somewhat angled; the broad summit bordered 

 with 2 or more series of short blunt palese. 



1. C. Intybtjs, L. (Chioort). More or less hirsute below, 2 — 5 ft. 

 high: radical leaves runcinate; cauline oblong or lanceolate, dentate; 

 those of the flowering branches scarcely more than bract-like: heads 

 1 in. broad or more, expanded in the morning, closing by midday. — 

 Common in many places, as an escape from the market gardens. 



