CICHORIACE^E. 219 



OBDEB LVIX. CICHORIACE^E. 



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

 escence closely analogous to Compositse, 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-branches 

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

 smooth and distinctly 12-sided. 



* Pappus of plumose bristles- 

 Receptacle not chaffy; 



Achenes truncate PTILORIA 2 



[" flowers -white NEMOSERIS 3 



" beaked \ " purple TRAGOPOGON 4 



[ " yellow.. PICRIS 9 



Receptacle chaffy HYPOCKasRis 5 



* * Pappus paleaceous, awned or awnless. 



Pappus-paleae awnless CICHORIUM 1 



" awned; 



Awn from a notch in the palea UROPAPPUS 6 



Palea tapering into the awn; 



Annuals; achenes oblong or turbinate MICROSERIS 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 13 



" 4 5-angled TARAXACUM 14 



Achenes compressed; 



Beaked or at least attenuate above LACTUCA 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 paleae. 



1. C. INTYBUS, L. (CHICOBY). More or less hirsute below, 25 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. 



