526 ANALYSIS OF THE ORDERS IN DISCIFLORA, 
b. Carpels wholly combined, (at least as to their e 
ovaries ). 
Styles distinct to the base. 
Calyx valvate . > . . . Viwraniacer. 
Calyx imbricate ; : ; . Linacez. ” 
Styles more or less combined. ee 
Calyx valvate or united, or but very 
slightly imbricate. 
Stamens ‘hypogynous. 
Calyx generally enlarging with 
the fruit . : : . Olacacezx. 
Calyx not enlarging withthe fruit. 
Stamens opposite tothe petals, 
isomerous. . . Rhamnacee. 
Stamens alternate with the 
petals, isomerous. . 
Leaves compound ° . Burseracex. 
Leaves simple. - . ILcacinacex. 
Stamens more or less perigynous. 
Flowers irregular, ovules sus- 
pended . “ ‘ : . Tropeolacex, 
Flowers regular, ovules erect . JLimnanthacex. 
Calyx imbricate. : 
Fruit gynobasie. : 
Stamens arising from scales . Simarubscex. 
Stamens not arising from scales, 
Stvles wholly combined. 
Flowers perfect . A . Rutacex. 
Flowers polygamous . . Aarthorylex of 
Rutacex. 
Styles divided at the apex. 
Flowers irregular, fruit usu- 
ally with elastic valves . Balsamnacezx. 
Fruit not gynobasic. * 
Calyx much imbricate, in an ir- 
regular broken w horl. 
Petals with appendages at 
their base. Leaves alternate Sapindacex. 
Petals without appendages at 
their base. Leaves opposite Aceracex. 
Calyx but little imbricate, in a 
complete whorl. 
Carpels 4 or more. 
Seeds winged , ° . Cedrelacex, 
Seeds wingless. 
Stamens united into a 
long tube. ; . Meliacezx. 
Stamens distinct, or nearly 
80, 
Leaves dotted. 
Seeds amygdaloid . Aurantiex of Rutacex. 
Leaves without dots. 
Seeds erect - . Celastricex. 
Carpels less than 4. 
Petals imbricate. 
Ovules suspended. . Cyrillacex. 
Ovules erect . ‘ . Celastraceex. 
