Ord. 2.] FENTANDRIA DIGYNIA. 41 



138. ECHINoPHORA. Fr. ovate, imbedded in the enlarged, 



armed receptacle. Seed solitary. Cal. spinous. Pet. obcor- 

 date, unequal. Fl. separated. 



139. DA.UCUS. Fr. elliptic-oblong-, compressed transversely. Seeds 



with 4 rows of flat prickles, and rough intermediate ribs. 

 Cal. obsolete. Pet. inversely heart-shaped, unequal. Fl. 

 separated. 



140. CA.UCALIS. Fr. elliptic-oblong, compressed transversely. 



Seeds with 4 rows of ascending, awl-shaped, hooked prickles ; 

 the interstices prickly or rough. Cal. broad, acute, unequal. 

 Pet. inversely heart-shaped, unequal. Fl. imperfectly separated. 



141. TORlLIS. Fr. ovate, slightly compressed laterally. Seeds 



ribless, rough with scattered, prominent, ascending, rigid 

 prickles. Cal. short, broad, acute, nearly equal. Pet. in- 

 versely heart-shaped, nearly equal. Fl. united. 



Myrrhis 1. 

 D. Fruit solid, nearly round, unarmed, without wings. 



145. MyRRHIS. Fr. deeply furrowed. Cal. 0. Pet. inversely 



heart-shaped, rather unequal. Fl, recept. 0. Fl. imperfectly 

 separated. 



146. v BuNIUM. Fr. slightly ribbed. Cal. small, acute, unequal. 



Pet. inversely heart-shaped, equal. Fl. recept. 0. FL im- 

 perfectly separated. 



153. (ENaNTHE. Fr. ribbed, somewhat spongy. Cal. large, lan- 



ceol. acute, spread, uneq. Pet. inversely heart-shaped, radiant, 

 very uneq. Fl. recept. dilated, depressed. Fl. separated. 



154. CRlTHMUM. Fr. ribbed, coriaceous. Cal. small, broad, 



acute, incurved. Pet. ellipt. acute, incurv., equal. Fl. ?-ecept.O. 

 Fl. united, all perfect. 



163. ATHAMANTA. Fr. ribbed, ovate, hairy. Styles short. Cal. 



lanceol. acute, incurved. Pet. inversely heart-shaped, equal, 

 with a broad point. Fl. recept 0. Fl. imperfectly separated. 



164. PIMPINeLLA. Fr. ovate, ribbed, with convex interstices. 



Styles capillary, as long as the fruit. Cal. 0. Pet. inversely 

 heart-shaped, nearly equal. Fl. recept. 0. Fl. either united 

 or dioecious. 



E. Fruit solid, unarmed, without wings, compressed laterally ; its 

 transverse diameter being at least twice the breadth of th e juncture. 



147. SlUM. Fr. ovate or globular, ribbed, furrowed. Cal. small, 



acute, uneq. or obsolete. Pet. obovate or inversely heart- 

 shaped, equal, longer than the cylindr. styles. Fl. recept. 0. 

 Fl. uniform, united. 



148. SlSON. Fr. ovate or nearly orbicul., ribbed. Cal. blunt, or 



obsolete. Pet. ellipt. or inversely heart-shaped, equal, with 

 an involute point. Styles very short and thick. FL recept. 0. 

 Fl. uniform, united. 



149. CICuTA. Fr. nearly orbicul. heart-sh. at the base, with 6 



double ribs. Cal. broad, acute, rather uneq. Pet. ovate or 



