192 CONIFERS. [Cl. 15. 



according to Mr. Brown, as well as remarkably in- 

 verted, having the aperture near the base. The outer- 

 most of these coverings is probably a real Calyx, 

 as appears by the figure of Dacrydium in Lambert's 

 Pinus, t. 41. 



The above general view of this celebrated System 

 will be sufficient for any attentive student to enable 

 him to apply it to practice, and even to correct it, or 

 to make additions, by means of new discoveries. The 

 Plant a incerta sedis, or Genera which the author 

 could not, at the time he published his work, reduce 

 to any of his Orders, are artificially classed, at the 

 end, by their Petals, situation of the Gennen, and 

 number of the Styles and Stamens. These genera 

 amount to 137; but many of them have since been 

 better understood by the author himself, or have been 

 elucidated by others ; and several will be found, in 

 the foregoing exposition, either referred to other ge- 

 nera, previously known, or classed with some of their 

 allies. The observations of the distinguished Gart- 

 ner, on Fruits and Seeds, in his well-known work on 

 that subject, have conduced greatly to the improve- 

 ment of Jussieu's system, both in principle and de- 

 tail ; and it's illustrious author has profited by those 

 observations, in several treatises upon different Orders 

 or families, in the Annales du Museum d'Hist. Nat., 

 some of which have been translated by Mr. Konig, in 



