Xii SYNOPSIS OF THE NATURAL ORDERS. 



B. Ovary one ; placentas 2 or more, parietal or on the dissepi- 



ments, not forming a central axis. 



I. Corolla regular. Pet. 4. 



14. Papaverace^. Sepals 2. Stam. many. 



18. Cbucipeb^. Sepals 4. Stam. tetradynamous. 



II. Corolla regular. Pet. 5. 



39. Dboserace^. Sep. 5, equal, distinct, imbricate. Seeds 

 without an arillus. 



35. CiSTACEa:. Sep. 5, distinct ; 3 inner with a twisted a;sti- 



vation ; 2 outer . smaller or wanting. Seeds without an 

 arillus. 

 115. Tamariscace^. Sep. 5, combined below. Seeds comose. 



III. Corolla regular. Pet. many. 



13. Nymph^bace^. Pet. gradually passing into the stamens. 



IV. Corolla irregular. 



16. FuMARiACEiE. Sep. 2 or 0. Stam. 6, in two bundles. 



36. VioLACE^. Sep. 6. Stam. 5; filaments free at the base. 



C. Ovary 1 ; placentas central. 



I. Estivation of calyx valvate or with distant lobes. 



56. Malvaceae. Stam. monadelphous. 

 58. TiliacEjB. Stam. distinct, hypogynous. 

 69. Rhamnace^. Stam. distinct, opposite the pet. and equal- 

 ling them in number, perigynous. 

 1 15. LythracejE. Stam. distinct, alternating with the pet. or 

 twice as many. 



II. Estivation of calyx imbricate. Cal. and cor. irregular. 



67. BALSAMINACE.ffi;. 



III. jEstivation of gamosepalous calyx imbricate. Cor. regular. 



87. Rosacea (Tr. Amygdalese). Fruit a drupe. Stam. epi- 

 gynous. 

 . 42. Caryophyli,ace« (Subord. Silenese). Fr. a capsule. 

 Stam. hypogynous. 



IV. Estivation of cal. imbricate ; sep. distinct or slightly con- 



nected below. Cor. regular. 



* Ovary 1 -celled. 



121. PoBTULACE^. Sep. 2. Stam. opposite the petals. 



43. CaryophyllacejE (Subord. Alsinese). Sep. 3 — 5. Stam. 

 10 or fewer, opposite the sepals. Stipules 0. 



122. Paronychiace^. Sep. 3—5. Stam 5, opposite the 



sepals. Stipules present. 



