CLASSIFICATION OF JUSSIEU. 17.5 



No Then it belongs to I . 

 Yes Then it belongs to III. 



De Candolle, I may mention, terms the first class 

 cellular ! , because the plants have cells but no vessels, 

 and the two others vascular 2 , because they have both 

 vessels and cells. The vascular plants he again divides 

 into ingrowing 3 , and outgrowing 4 . 



Second Lesson on Jussieus System. 

 These three great divisions having been mastered, 

 the beginner may then look into the fifteen classes and 

 their orders. 



I. Plants without Seed-lobes or Sap and Pulp Vessels 5 . 



FIRST CLASS a . 



The seed when it can be discovered 

 is simple and without parts. There 

 are ten orders : 1, Sea- weeds ; 2, Mush- 

 rooms; 3, Lichens 5 4. Liverworts; 5, 

 Mosses; 6, Lycopodiums; 7, Ferns; 

 8, Marsileas; 9, Mares' tails; 10, Starworts. 



(1) In Latin, Cellulares. (2) In Latin, Vasculares. 



(3) In Latin, Endogence. (4) In Latin, Exogena. 



(5) In Latin, Acotyledoncs. 



