sxii CONTENTS. 



PART II. 



Chap. Page 

 I. Of the Sexual System , and its Origin 49 



II. Explanation of the Titles of the Twenty-four Classes 58 



III. Explanation, of the Titles of the Orders 62 



IV. Of the first Class, Monandria 65 



V. Of the second C a s, Diandria 66 



VI. Of the third Class, Triandria 67 



VII. Of the fourth Class, Tetrandria 63 



"VIII. Of the fifth Class, Pentandria 70 



IX. Of the sixth Class, Hexandria 74 



X. Of the seventh Class, Jleptandria 76 



XI. Of the eighth Class, Octandria. 77 



XII. Of the ninth Class, Enneandria 78 



XIII. Of the tenth Class, Decandria 79 



XIV. Of the eleventh Class, Dodecandria 81 



XV. Of the tivelfth Class, Icosandria 82 



XVI. Of the thirteenth Class, Poli/nndria 84 



XVII. Of the fourteenth Class, Didynamia 86 



XVIII. Of the fifteenth Class, Tetr adynamia 89 



XIX. Of the sixteenth Class, Monadelphia 92 



XX. Of the seventeenth Class, Diadelphia 95 



XXI. Of the eighteenth Class, Folyadelphia 100 



XXII. Of the nineteenth Class, Syngenesia , 101 



XXIII. Of the twentieth. Class, Gynandria 106 



XXIV. Of the twen ty -first Class, Moncecia 109 



XXV. Of the twenty-second Class, Duxcia . 1 1 1 



XXVI. Of the twenty-third Class, Polygamia 114 



3^XVII. Of the twenty -fourth Class, Cryptogamia.*...* 116 



XXVIII. Of the Appendix 119 



XXIX. Of Generic Distinctions ............. 120 



XXX. By what Parts of Fructification the Genus may with the 



most certainty be detet mined 1 22. 



XXXI. Of the Genera rejected by the Sexual System, as not 



established on the Fructification., , , 123 



