1 SYNOPSIS OF THE GENERA. 



Order 6. HEXANDRIA. 



(See Runiex. ) 



Order 7. POLYANDKIA. 



152. POPULUS. Fl. in catkins. Anthers 8 30. Perianth oblique, 

 entire. Fertile fl. Stigmas 4 8. Capsule superior, 1 -celled 

 and 2-valved. Trees. 



67. SEDUM. Cal. 4-cleft. Pet. 4. Glands 4, emarginate. Cap- 

 sules 4, many-seeded. 



146. MERCURIALIS. Perianth single, 3-partite. St. 9 12. Cells 

 of the anthers globose. Fertile fl. Germen superior. 

 Styles 2. Capsule 2-celled, cells 1 -seeded. 

 (See Caryophyllacece.) 



Order 8. MONADELPHIA. 



159. ANACHARIS. "Cal. 3-parted, inferior, with a long tube. 



Filaments 3. Capsule 1 -celled. Male with 9 stamens, 



filaments combined. " 

 155. JUNIPERUS. Barren fl. in catkins. St. 5. Fertile fl. Style 



and stigma none. Scales combining into a fleshy berry. 



Shrubs. 

 155. TAXUS. Barren fl, in catkins. St. 5. Fertile fl., scaly at 



the base. Style and stigma none. Seed 1, nearly enclosed 



by a fleshy cup. A tree. 



Class 23. POLYGAMIA. 



Order 1. MONCECIA. 



140. ATRIPLEX. Perianth single, of 2 valves in the pistillate 

 flowers, in the others 5 -partite. Fruit a utricle covered by 

 the enlarged perianth. 



(See Parietaria. ) 



Class 24. CRYPTOGAMIA 



(See Class 3, page 202.) 



