SYNOPSIS OF THE NATURAL ORDERS. XV 



II. Stam. on the corolla, filaments connected. 



40. POLYGALACE^B. Filaments mouadelphous, separating into 

 2 bundles above. 



III. Stam. on the corolla, distinct. 

 . Stam. 2. Cor. regular. 



218. OLEACE^E. 



$. Stam. 2, or 4 and didynamous. Cor. irregular. 

 234. OROBANCHACE^E. Ovary 1 -celled, with 2 or more parietal 



placentas, in a fleshy disk. 



237. SCROPHULARIACE^E. Ovary 2-celled ; placentas central. 

 263. VERBENACEJS. Ovary 2 4-celled. Capsule dividing 

 into 4 nuts. 



c. Stam. 4 5, not didynamous. Cells of the ovary with 



1 2 ovules. 

 218. AQUIFOLIACE^E. Cor. 4 6-parted. Hypogynous disk 0. 



Fr. fleshy, not bursting. 

 224. CoNVOLVULACEjE. Cor. 4 5-lobed. An hypogynous 



disk surrounding the ovary. Fr. a capsule, bursting. 



d. Stam. 4 5, not didynamous. Cells of the ovary with many 



ovules. 



223. POLEMONIACE.E. Ovary 3-celled. Caps. 3-valved. 

 220. GENTIANACE.E. Ovary 1 2-celled. Caps. 2-valved. 

 232. SOLANACE^E. Ovary 2-celled. 

 290. APOCYNACE^:. Ovaries 2, 1-celled. 



Subdivision V. Perianth single or none. 



A. Flowers not in catkins. Perianth superior. 



288. ARISTOLOCHIACE^;. Stam. 6 or 12, epigynous. Ovary 



3 6-celled. 



120. HALORAGACE^J (part). Stam. 1. Perianth very minute. 

 287. SANTALACE^B. Stam. 4 5. Ovary 1-celled. 



B. Flowers not in catkins. k Perianth inferior. 



I. Fr. separating into several carpels. 



120. HALORAGACE^E (part). Carp. 4, not bursting. Stam. 8. 

 293. CALLITRICHACE.E. Carp. 4, not bursting. Stam. 1. 



289. EUPHORBIACE^E. Carp. 3 or 2, opening with elasticity. 



II. Fruit indehiscent. 



a. Leaves with stipules. 



280. POLYGONACE^B. Stipules (ochrese) connected quite round 

 the stem. 



