200 COMPARISON OK THE NATURAL ORDERS 



ence of such a difference in the Cotyledons of one 

 genus, might well justify him in not dividing an 

 Order on that account, and possibly cherished this 

 idea, as an irrefragable proof of his position, that no 

 character whatever was free from exception in natural 

 orders. Neither the deduction, nor the fact as to 

 Nymphcea, is now admitted, and yet the Lentibulariae 

 of Brown, see (Ord. 34) p. 96, and Cuscuta, see Con- 

 volvuli, are strong exceptions. 



12. HoleracejE — A large Order, of which the 

 1st section is composed of many of Jussieu's Atri- 

 plices 29 ; the 2d of more of the same, with Calligo- 

 num, one of his Polygonece 28 ; the 3d of Axyris 

 only, one of his Atriplices ; the 4th of some Ama- 

 ranthi 30, and some Atriplices ; the 5th of Poly- 

 gonece 28, with Begonia their ally in habit, see a re- 

 mark on Jussieu's 52d Order ; the 6th of Nyssa, Mi- 

 musops, Rhizophora and Bucida ; the 7th of Anacar- 

 dium (removed by a manuscript note from the 6th 

 section), Laurus, Tinus, Winterania and Heisteria. 

 There is no analogy between these two latter sections 

 and any of Jussieu's Orders. His Lauri 27, a good 

 Order, was not perceived by Linnaeus. 



13. Succulents — Cactus, one of Jussieu's 85th 

 Order, with some of his Portulacece 86, and Ficoi- 

 dece 87, make the 1st section ; Sempcrvivce 83 are 

 the 2d ; some more Portulacece chiefly compose the 

 3d ; and Saaifragce 84 are the 4th section of this 

 Order, in which Linnaeus was guided by habit, and 



