LINDLETS XATTJfiAL SYSTEM. 417 



In 1838, Liudley modified his views so far as regarded Exo- 

 gens, and proposed the following divisions for that class of 

 plants : — 



EXOGEI^S, OK DiCOTTLEDONS. 



Albumen extremely abundant ; embryo 



minute 1. Albuminosze. 



Albumen absent,, or in small quantity. 

 Sexes in the same flower. 



Ovary inferior . . . .2. Epigynosse. 



Ovary superior. 



Elowers, if monopetalous, not with 



a dicarpous ovary . . .3. Polycarposse. 

 Rowers monopetalous, with a di- 

 carpous ovary . . . .4. Dicarposse. 

 Sexes in different flowers . . .5. Diclinosse. 



In the year 1839, Lindley proposed to increase the number 

 of the primary classes of plants to eight, in the following 

 manner : — 



State 1. Sexval, or ELOWEErs-G PLA>rTS. 



Cydogtns. f Class 1. Exogens. 

 Dinsion 1. Exogens . •] t Class 2. Gyranogens. 



Class 3. Homogens. 

 / a f Class 4. Dietyogens. 



Division 2. Ekdogens J P^^^g^^is. ^ Q^^gg ^^ Endogens. 



i Class 6. Sporogens,or 



Ehizanths. 



State 2. EsExuAx, oe Floweeless Plants. 



/ Class 7. Cormogens 

 (distinct 



Division 3. Aceogens , . . -( m o nZ ^^ 



Class 8. Thallogens 



(no distinct 



stem). 



Lindley finally, in the year 1845, modified his views again, 

 and proposed the following scheme, which is that adopted by 

 him in " The Vegetable Kingdom." 



LINDLETS NATURAL SYSTE3I, 1846. 

 1. Asexual, or Eloweeless Plants. 



Stem and leaves undistinguishable . Class 1. Thallogens. 

 Stem and leaves distinguishable . . Class 2. Acrogens. 



