24. KEY TO THE FAMILIES. 



257. Fruit capsular, or if dicoccus then ovary half inferior and 



leaves small and heath like. Leaves simple undivided. 258. 



Fruit a schizocarp, or rarely a nut or drupe. Leaves usually 



either compound or deeply divided. 259. 



258. Leaves stipulate. Flowers unisexual. (Trichocladus). 



66 HAMAMELIDACEAE. 

 Leaves exstipulate. Flowers hermaphrodite. (Berardia). 



65 BRUNIACEAE. 



259. Fruit a schizocarp, rarely a nut and then as usually stem 



herbaceous. Epigynous disc usually 2 parted. 



116 UMBELLIFERAE. 

 Fruit a drupe or nut. Stem v/oody throughout.. 



115 ARALIACEAE. 



260. (254) Leaves compound or more or less deeply divided, 



115 ARALIACEAE. 

 Leaves simple undivided coarsely toothed. (Curtisia). 



117 CORNACEAE. 



26L (250) Ovules 2 — 4 in each ovary cell. 262. 



Ovules more than 4 in each ovary cell. 266. 



262. Stamens as many as petals or fewer. 263. 

 Stamens twice as many as petals or more. 264. 



263. Stamens opposite petals. Leaves opposite exstipulate. 



(Olinia) 105 OLINIACEAE. 

 Stamens alternating with petals. Leaves stipulate. 



85 CELASTRACEAE. 



264. Leaves stipulate. Style or stigmas 2—5. 67 ROSACEAE. 

 Leaves exstipulate, style 1, stigma 1. 265. 



265. Leaves opposite gland dotted. Ill MYRTACEAE. 

 Leaves alternate. (Barringtonia) 108 LECYTHIDACEAE. 



266. (26I) Water lilies. (See 209). (Nymphaea). 



46 NYMPHAEACEAE. 

 Not water lilies. 267. 



26?'. Herbs with petals and stamens, both very numerous. Cap- 

 sules opening at top. Leaves usually opposite, thick and 

 fleshy. (Mesembrianthemum) 43 AIZOACEAE. 



Not as described for Mesembrianthemum. 268. 



268. Herbs with monoecious flowers. Male with many stamens. 



Female with a 3-winged perianth tube adnate to ovary, 

 and a 4 — 9 parted coloured limb. (Begonia). 



103 BEGONIACEAE. 

 Plants not as described for Begonia. 269. 



269. Styles 2. Flowers small green. Shrub with entire alternate 



leaves. (Choristylis) 61 SAXIFRAGACEAE. 



Style 1 with 1 or more stigmas. 270. 



270. Stamens as many or twice as many as petals. 271. 

 Stamens more than twice as many petals. 274. 



