SYNOPSIS OP THE NATUEAX OEDEES. XXXI 



44 Stamens hypogynous, scarcely attached to the corolla, 



distinct . . . .xlvii. JSricacecs (Ericeae and Arbutese). 

 Stamens upon the coroUa; filaments connected. 



xii. PolygalaceeB. 

 Stamens upon the corolla, distinct 45 



45 Stamens 2. Corolla regular xlix. Oleacea. 



Stamens 2 or 4, and didynamous. Corolla irregular . . 4G 

 Stamens 4 or 5, not didynamous 47 



46 Ovary 2-ceUed, not lobed ; placentas central. 



lyii. Scrophidariacece. 

 Ovary 2 — 4-ceUed, lobed Ux. Verhenacece. 



47 Cells of ovary each with 1 or 2 ovules 48 



Cells of ovary each with many ovules 49 



48 Fruit fleshy, not bursting. Stigmas sessile. 



xlviii. Aquifoliacece. 

 Fruit a capsule, bursting. Styles manifest. 



Uii. Convolmdacea:. 



49 Fruit a double follicle 1. Apocynaceee. 



Fruit 2-, or imperfectly 4-ceUed. Leaves alternate. 



Iv. Solanacece. 

 Fruit 1- or imperfectly 2-ceUed, 2-valved. Leaves 



opposite li. Gentianacece. 



Fruit 3-ceUed, 3-valved lii. Pohmoniaoea. 



50 Flowers not in catMns 61 



Male flowers in catkins Ixxviii. AmentifercB. 



Flowers inconspicuous (rarely found). Plant formed of 



minute leaflike fronds, floating freely. 



xciv. Lemnacete. 



51 Ovary one, superior. Perianth sometimes wanting. ... 54 



Ovary inferior 52 



Ovaries many, distinct 53 



5J mens 1 or 8. Fruit not bursting, 1- or 4-celled, 1- 

 or 4-seeded. Limb of perianth of female flower very 

 minute xxx. Saloragacece. 



Stamens 4 or 5. Fruit not bursting, 1-ceUed, 1-seeded. 

 Limb of perianth manifest Ixix. Santdlaceee. 



Stamens 4. Style filiform. Ovary 4-celled, many- 

 seeded xxix. Onagraee<B. 



Stamens 6, on base of perianth. Style 1, trifld. Fl. 

 dioecious Ixxxi. IKoscoreacea. 



Stamens 6 — 12, epigynous. Style short. , Stigma ra- 

 diant. Ovary 3 — 6-ceUed, many-seeded. 



Ixx. AristolochiacetE. 



Stamens 8 — 10. Styles 2. Ovary 1-celled, 2-beaked. 

 many-seeded, opening like a cup. 



xxxvi. Saxifragacece. 



