380 



MANUAL OF BOTANY 



GjTiobase dry. 



Leaves regularly opposite 

 Leaves more or less alternate. 



Fruit beaked 



Fruit not beaked ..... 



Styles more or less combined, not gyno- 

 basic. 

 Calyx much imbricate, in an irregular 

 broken whorl. 

 Flowers not surrounded by an involucre 

 Calyx but little imbricate, in a complete 

 whorl. 

 Stamens 3, sej)als and petals penta- 

 merous ...... 



Stamens more than 3. 

 Calyx glandular. 



Petals without appendages 

 Calyx not glandular. 

 Leaves simi^le. 



Petals united by their claws into 

 a tube .... 



Leaves compound. 



Petals distinct .... 



Calyx valvate. 



Stamens opposite to the petals, iso- 

 merous. 

 Seeds one in each cell .... 



Stamens opposite to the petals if iso- 

 merous, anthers versatile, seeds two 

 in each cell ..... 



Stamens twice as many as the petals 



Zygophyllacece. 



Geraniacece. 

 Oxalidacece. 



Sapindacece. 



HippocrateacecB. 

 Malpighiacece. 



StacJchousiacece. 

 StaphyleacecB. 



Bhamnacete. 



Vitacece. 

 Burseracece. 



The following exceptions may be noted to the characters usually dis- 

 tinctive of the Disciflorte. We have apetalous species in Zygophyllacea;, 

 Geraniacece, Bcdsaniinacece^ Butacece, Simarubacece, BurseracecB, 

 OlacacecB, Celastracece, Bhaninacece, Sajjindacece, Anacardiacece, and 

 some others. 



Gamopetalous corollas are sometimes found in Hu?niriacecB, Butacecs, 

 Balsaitiinacece, Meliacece, and Stackhousiacece. 



In Gera7iiacece, BalsaDiinacece, TTojJceolacece, OxalidacecB, Aceracece, 

 Ayiacardiacecp, Malpighiacece , Linacece, &c., the disc is small, or entii-ely 

 or partially absent. The ovai'y is more or less inferior in some OJacacece 

 and Bhamnacece ; and the placentation is parietal instead of axile in some 

 OclinacecE and Moringacece. 



