APPENDIX I. 



313 



I. KEY TO THE NATURAL ORDERS. 



CHIEFLY ADAPTED FEOM DE. LINDLET's ' VEGETABLE KINGDOM.' 



Exogens, or Dicotyledones. 



I. POLYPETALOTJS. 



Polyandrous. Stamens more than 



30. 



§ Ovaries inferior. 





1. Leaves with transparent dots 



Myrtacea. 



2. Leaves without transparent"! 



Mesembryan- 



tliemea. 



§ § Ovaries superior. 





f Leaves stipulate. 







Rosacea. 



|3. Carpels combined. 





1. Anther 1 -celled . . 



Malvacea. 



2. Anther 2-eelled . . . 



Tiliacea. 



ff Leaves exstipulate. 





a. Carpels numerous. 





1. Stamens perigynous . 



Rosacea. 



2. Stamens hypogynous, free Ranunculacea 



3. Stamens hypogynous, uni- 





ted in bundles .... 



Ilypericinea. 



P. Oligandrous. Stamens fewer than 20. 



§ Ovary inferior. 





f Flowers umbellate. 





1. Herbs. Styles 2 . . . 



Umbellifera. 



2. Shrubs or trees. Styles 2 







Araliacea. 



tt Flowers not umbellate. 





a. Stipulate 



R&amnacea. 



/3. Exstipulate. 





* Style 1. 





1. Petals 4, imbricate. . 



Onagrariea. 



2. Petals 4-5, valvate. 





Stam. opposite petals . 



LorantJiacea. 



3. Petals B. Stamens al- 





ternate with petals. 





Cells of fruit 1-seeded 



Cornea. 



Cells of fruit many- 







Escalloniea. 



* Styles 2 or more. 





1. Cells of fruit 1-seeded . 



Haloragea. 



2. Cells of fruit many- 





seeded 



Saxifragea. 



VOL. II. 





\ Ovary superior, 

 f Leaves stipulate. 



a. Carpels solitary or distinct. 



1. Flowers papilionaceous . Leguminosa. 



2. Flowers regular . . . Rosacea. 

 /3. Carpels more or less combined. 



* Placentae parietal. 



1. Flowers with a corona Passiflorea. 



2. Leaves with viscid 

 glandular hairs . . . Brosera. 



3. Connective of anthers 



broad Violariea. 



** Placentae axile. 



1. Styles separate. 



Sepals free .... Elatinea. 

 Sepals combined . . Cunoniacea. 



2. Styles combined ; carpels gynobasic. . 



Carpels awned . . Geraniacem. 

 Carpels not awned . Oxalidea. 



3. Styles combined; carpels not gynobasic. 



Sepals 2-3 . . 





Portulacea. 







RMmnacea. 



ff Leaves exstipulate. 







a. Carpels several, free. 







1. Many-seeded . . 





Crassulacea. 



2. One-seeded . . . 





Ranunculaeea 



/3. Carpel solitary. 







1. Drupaceous 





Anacardiacea . 



2. Leguminous 





Leguminosa. 



y. Carpels combined. 







* Styles free. 







1. Carpels several . 





Linea. 



2. Carpels 2. Shrubs . 



Cunoniacea. 



3. Carpels 2-3. Herbs 



Saxifragea. 



4. Carpel 1. Stamen 



s op- 





posite petals . 





Olacinea. 



** Styles combined. 







1. Leaves dotted. 



Sta- 





mens alternate 



with 









Rutacea. 



2. Stamens attached 



vith- 





in a tube . . 





Meliacea. 

 4 L 



