412 203. Phrygia. 39. COMPOSITiE, B. PL ex. cat. 



2. Phrygia nigra. Black knapweed. 



Leaves lanceolate ; root-leaves slightly toothed ; stem- 

 leaves undivided, serrated; lobes of the pericline-scales 

 iipright ; calatliides fiosculous. 



Jacea nigra, Rail Syn. 198, 2 ; Ger. em. 727, 1. 

 Jacea nigra vulgaris. Park. 468. 

 Centaurea nigra, Lin. S, P. 1288. 

 Mat fellon. 



Fields and pastures ; perennial ; June to August. 



Root creeping ; stem branched ; iipper leaves ovate, ser- 

 rate or not cut ; calatliides solitary, terminal ; flowers all 

 ^qual and fertile. 



&. tomeniosa. Plant small, nappy, grey. 



Jacea nigra minor, tomentosa, laciniata, Dillen in Rati Sifn. 199,3. 



S. Phrygia pratensis. Meadow knapweed. 



Leaves lanceolate, toothed, rather bald; upper leaves 

 strap-shape, not cut ; pericline-scales flat ; lower scales ra- 

 ther scarious; lobes upright; calathides radiated. 



Jacea nigra, flore jacese majoris, Raii Syn. 199, 2; var. 

 Centaurea pratensis, Thuill. Ft. Par. 444. 

 Centaurea nigra B, Smith Ft. Brit. 910. 



Fields and pastures; perennial; July and August. 

 Stem fluted, cottony; outer flowers pui*ple, radiating, 

 barren ; lobes deep, strapshape ; central flowers white. 



XXIX. 204.. JACEA. Clusius. Jacea. 



Pericline globose ; scales scarious, ovate, torn ; inner 

 scales clawed; flowers in the centre hermaphrodite; of the 

 circumference neuter, large, irregular; clinanthus chaffy; 

 chaffs linear, awlshape, shorter than the pericline; pappus 0, 

 or bristlelike, very short, deciduous. 



Jacea nigra. Black jacea. 



Leaves lanceolate, not in the least cut, root-leaves ra- 

 ther toothed ; branches angular. 



Jacea nigra quae in Germaniai jiratis nascitur, Dillcnin Raii Syn, 199,2; 

 rar. 



Rhaponticum Jacea, Scopoli Cam, 2, 1017. 

 Centaurea Jacea, Lin. S. P. 1290. 



Woods and fields, Sussex ; perennial ; August and Sep- 

 tember. 



Pericline-scales pale brown', shining; lower scales pirt- 

 natifid. 



