Pl.ex.cal, 39. COMPOSITE, B. 198.Carduu9. 437 



2. Carduus acanthoides. Bear"" s-hreech thistle. 

 Leaves decurrent, sinuate, spinous; perkline globose, 



slightly peduncled ; scales linear, recurred. 



Carduus caule crispo, Rail Syn. 194, 2. 

 Polyacanthos, Ger. em. 1173, 1. 

 Carduus polyacanthos, Park. 982. 

 Carduus acanthoides, Lin. S. P. 1150. 

 Carduus crispus, lluds. Fl. Angl. 350. 

 Thistle upon thistle. Grey thistle. 



Roads near fields ; annual ; June and July. 

 Leaves green on both sides, bald; calathides terminal, 

 mostly peduncled ; corollce dark purple. 



3. Carduns ienu'iflorus. Slender-Jiowered thistle. 

 Leaves decurrent, sinuate, spinous ; nappy beneath ; p€- 



riclbie nearly cylindrical, aggregate; scales lanceolate, ra- 

 ther upright; pedimcles very short, appendiculately spinous.- 



Carduus spinosissimus capilnlis minoribus, Raii Sijn. 194, 3. 

 Carduus acanthoides, Hudson Fl. Angl. 351. 

 Carduus tenuiflonis, Curtis Fl. Land. 

 Welted thistle. 



Fields and waysides ; annual ; June and July. 

 Stem 4 feet high, slightly branched ; pericline pale, rather 

 woolly ; calathides crowded ; corollce pale purple. 



XXIV. 199. CIRSIUM. Dioscorides. Soft-thistle. 



Pericline bellied or cylindrical ; scales imbricate, linear 

 pointed, not appendiculated ; flowers all hermaphrodite ; 

 clinanthus chaffy, chaffs pale, capillary, as long as the pe- 

 ricline; pappus featherlike; rays equal, longer than the 

 akeniumj annular at the base, deciduous. — Leaves spinous. 



1. Cirsium palustre. Marsh soft-thistle. 



Leaves decurrent, naked, lanceolate, toothed, rough, edge 

 spinous ; calathides racemose, glomerate ; periclme-seales 

 ovate, lanceolate, mucronate, pressed close. 



Carduus palustris, Raii Syn. 194,4; Park. 983; Lin. S. P. 115, 1. 

 Cnicus palustris, Willd. S. P. 1662, 

 Cirsium palustre, De Candolle Fl. Gall. 3072. 



Damp fields and pastures ; biennial or perennial ; July 

 and August. 



Root branchy ; stem stiff, branched, 6 feet high ; leaves 

 pinnatifid, dark green, lobes sinuated; pericUiie ovate; cO" 

 rollcB dark purple or while. 



