Recept. annular, thin, undulated, erect; afterwards 

 depressed. Fl. imperfectly separated, nearly regular. 



166. BUPLEURUM. i^r. ovate-oblong, obtuse, with pro- 



minent, acute, abrupt ribs ; interstices flat; juncture 

 contracted. Cal. none. Pet. equal, broadish-wedge- 

 shaped, very short, involute. Styles very short, not 

 extending beyond the circumference of their broad, 

 tumid bases. Fl. Recept. none. Fl. all perfect and 

 regular. 



167. HYDROCOTYLE. Fr. nearly orbicular, rather 



broader than long, angular, much compressed ; junc- 

 ture very narrow. Cal. none. Pet. equal, ovate, 

 spreading, undivided. Styles cylindrical, shorter than 

 the stamens ; tumid at the base. Fl. Recept. none. 

 Fl. all perfect and regular. 



F. Fruit solid, unarmed^ comj)ressed transversely, the 

 juncture beingbroader than thetransverse diameter. 

 150. ^THUSA. Seeds ovate, convex, with 5 tumid, 

 rounded, acutely keeled, ribs ; interstices deep, acut- 

 angular; border none. Cal. pointed, very minute. 

 Pet. inversely heart-shaped, rather irregular. Fl. 

 Recept. none. Fl. all perfect, slightly radiant. 



158. IMPERATORIA. Seeds orbicular, with a notch at 



each end, a little convex, with 3 prominent dorsal 

 ribs, and a dilated, flat, even border. Cal. none. 

 Pet. inversely heart-shaped, very slightly irregular. 

 Fl. Recept. none. Fl. all perfect, scarcely radiant. 



168. SELINUM. Seeds elliptical, slightly convex, with 



3 acute dorsal ribs, and a dilated, flat, even border. 

 Cal. minute, pointed, spreading. Pet. inversely 

 heart-shaped, involute, equal. Fl. Recept. obsolete. 

 Fl. perfect, regular, a few occasionally abortive. 



159. ANGELICA. 5^^^c?5 elliptic-oblong, convex, with 3 



dorsal wings, and a narrow, flat, even border. Cal. 

 none. Pet. lanceolate, flattish, undivided, contracted 

 at each end, equal. Fl. Recept. thin, wavy, narrow, 

 permanent. Fl. all perfect, regular. 



160. LIGUST] CUM. Seeds oblong, convex, with 3 dorsal, 



and 2 marginal, equal wings. Cal. small, pointed, 

 erect; broad at the base. Pet. elliptical, flattish, 

 undivided, contracted at each end, equal. Fl. Recept. 

 none. Fl. all perfect, regular. 



