49^ SYNGENESIA : POLYGAMIA FRSTRANEA. 



POLYGAMIA FRUSTRANEA. 



CENTAUREA. Gen. pi 984. 

 Recept. fetofum. Pappus fimplex. Cor. radii, in- 

 fundibuliformes, longiores, irregulares, 

 Cyani. calycinis fquamis ferrato-ciliatis, 

 nigra -t. CENTAUREA calycibus ciliatis •, fquamula ova- 

 ta, ciliis capillaribus eredis, foliis lyrato-angu- 

 latis, floribus flofculofis. Sp, pL i2^S. (Ger. em. 

 727./. 1. Pet. berh. t. 22./. 8 ^9. Parkinfon. 

 herb. 468.) 

 Common Black Knapweed, Anglis. 

 The Horfe-Knot. Scotis aufiralihus. 

 In meadows and paftures not unfrequ^nt, both in 



the highlands and lowlands. ^ . VIII. 

 The ftalk is two or three feet high, firm, branch'd 

 and angular: the leaves are rough and hard, 

 the lower ones pinnatid half way down to the 

 rib, or clfe Iparlngly indented 5 the upper ones 

 oval-lanceolate and entire. Sometimes it varies, 

 with all the leaves entire : the flowers are pur- 

 ple : the florets all tubular and hermaphrodite, 

 no neuter ones in the rim : the calyis is black, 

 and well exprefs'd In the fpeqific difference. 



^-nm 2. CENTAUREA calycibus ferratis, foliis lineari- 

 bus integerrimis, infimis dentatis. ^p. pi. 1289. 

 (Ger, em.y^i.f, 2. Pet. herb. t. ii. /. 4. Moris. 

 hift.f. 7. t. 25./. 4, Blackwellt. 270.) 



Blue-. 



^j 



