APPENDIX A. 131 



parts, and the blood will continue to circulate 

 for three or four hours in each. By a strong 

 electric shock," the force by which the latex is 

 propelled, is paralysed, and its motion arrested." 

 (Henslow's Principles of Botany, p. 207, et 

 seq.) 



B. 



ANALYSIS OF THE LINN^LAN CLASSES. 



FROM HALF'S " ANALYSIS OF THE BRITISH 

 FLORA." 



( Neither stamens nor pistils Cryptogamia (24.) 

 \ Stamens and pistils 2. 



/'Stamens and pistils in sepa- 



I rate flowers 3. 



i All or many of the flowers 



perfect 4. 



^Barren and fertile flowers on 



different plants Dirccia (22.) 



j Barren and fertile flowers on 



L the same plants Monoecia (21.) 



('Some flowers with pistils 



Ionly, and a perianth unlike 

 that of the united or of the 



4<^ barren flowers Polygamia (23.) 



Flowers with both stamens 

 and pistils, or with similar 

 perianths 5. 



