ANALYTICAL KEY 11 



Ovary inferior or so closely and permanently invested by the 



calyx as to appear so. 



Parasites on the branches of trees 34. LOKANTHACEAE, 145 



Not parasitic. 



Aquatic herbs 82. HALORAGIDACEAE, 345 



Terrestrial. 



Herbs with the calyx corolla-like. 



Leaves opposite 39. NYCTAGINACEAE, 172 



Leaves alternate 35. SANTALACEAE, 146 



Shrubs or trees with scurfy leaves 79. ELAEAGNACEAE, 331 



Ovary or its cells containing many ovules. 

 Ovary or ovaries superior. 



Ovaries 2 or more, separate 45. RANUNCULACEAE, 189 



Ovary 1. 



Ovary 3-5-celled ; leaves opposite or whorled 40. AIZOACEAE, 176 



Ovary 1-2-celled. 



Leaves compound 45. RANUNCULACEAE, 189 



Leaves simple. 



Sepals distinct 42. CARYOPHYLLACEAE, 180 



Sepals more or less united. 



Calyx 5-toothed or -cleft, Glaux in 90. PRIMULACEAE, 372 



Calyx 4-toothed or -cleft, Synthyris in 104. SCROPHULARIACEAE, 437 



Ovary and pod inferior, Chrysosplenium in 51. SAXIFRAGACEAE, 233 



CALYX AND COROLLA BOTH PRESENT 



COROLLA OF SEPARATE PETALS 



Stamens numerous, at least more than 10 (rarely 9-10 in Polanisia) and more 

 than twice as many as the sepals or calyx-lobes. 

 Calyx entirely free and separate from the pistil or pistils. 



Pistils several to many, wholly distinct, or united at base into a 



strongly lobed or several-beaked ovary. 



Aquatics with peltate leaves 43. NYMPHAEACEAE, 188 



Terrestrial plants. 



Usually climbers, with opposite leaves, Clematis in 



45. RANUNCULACEAE, 189 

 Not climbing, the leaves alternate. 



Filaments united into a tube 72. MALVACEAE, 316 



Filaments distinct, on the calyx 54. ROSACEAE, 245 



Pistils strictly 1 as to ovary ; the styles and stigmas sometimes 



more numerous. 



Leaves punctate with pellucid dots 75. HYPERICACEAE, 320 



Leaves not punctate. 

 Ovary simple, 1-celled. 



Ovules 2, seed solitary 56. DRUPACEAE, 269 



Ovules many; leaves 2-3-ternately compound or dissected 



45. RANUNCULACEAE, 189 

 Ovary compound as shown by the number of its cells, 



placentae, styles, or stigmas. 

 Ovary 1-celled. 



Placentae parietal; juice watery, milky, or yellow. 



Sepals 2 (rarely 3) 47. PAPAVERACEAE, 205 



