OF NORTH AMERICA. 8S^ 



with plumose seeds are my G. FiUoriaof 1833 



Atlantic Journal. 



954. OPICRINA Raf. difl. from Narbalia, 

 perianthe 10-15 segments commonly hirsute, 

 multiflore, with 20 to 30 flowers indefinite — 

 these are taller plants, exuding a milk intensely 

 bitter, producing a bitter opium which the name 

 implies ; the types are Op. crcpidinea and the 

 next. 



955. Opicrina latifolia Raf. Prenanthes 

 opicrina 1822. smooth, stem grooved ramose, 

 lower leaves with winged petiols cordate or 

 sagittate ovate, sinuate angular, upper ovate re- 

 pand or denticulate ; flowers in racemose pan- 

 icles fasciculate, perianthes nodding hirsute, 

 pappus fulvous — in Central Kentucky rich 

 woo<ls, 5 to G lieet high, leaves 4 to 10 inches 

 long, flowers large ochroleucous, perianthes 

 fuscate. Op. crepidinea ditfers by leaves ses- 

 sile oblong lanceolate unequaly dentate. Op 

 an^vsUlolin would be a better name. 



958. SITILIAS Raf. perianthe terete dou- 

 ble multiflore both multipartite, external shorter 

 adpressed, phoranthe naked, seeds smooth lin- 

 ear oblong grooved, pappus long stipitate sim- 

 ple capillary silky lulvous. — Caulescent, flow- 

 ers frw. — This G. differs from Leontodon by 

 pappus not plumose, from Borkhausia by terete 

 adpressed perianthe and costate seeds. It was 

 shuffled into 4 Genera! Leontodon^ Borkhau- 

 sia^ Scorzonera, Chondrilla ! and now must 

 form a 5th, the name was an ancient of Hiera- 

 cium of which it has the habit — Type S. Caro- 

 LiNiANA Raf. Borkausia do Elliot, see his sy- 

 nonymy and description, wherein he has proba- 

 bly blended the next Genus also. My specimen 



