POLYPETALAE. 87 
(2) Stamens more than twice as many as 
petals. 129. 
125 (a) Segments of the calyx valvate in aestiva- 
tion. 126. 
(4) Segments of the calyx imbricate or open 
in aestivation. 127. 
126 (a) Petals valvate in aestivation. Stamens 
6-10, twice as many as the petals. An- 
thers dehiscing by 1 pore at the top. 
Ovary 2-celled. Leaves entire or den- 
tate. Australia. Tremandreae. 
(6) Petals imbricate or open in aestivation. 
Stamens 5, as many as, and opposite to 
the petals. Anthers dehiscing by 2 
pores or slits. Ovary 3-5-celled. Leaves 
entire, dentate, or lobed. Sterculiaceae. 
127 (2) Ovules in each cell numerous. Leaves 
simple, entire or dentate.* Stamens 10- 
14, twice as many as the petals, free. 
Anthers dehiscing by 2 pores. Ovary 
3-7-celled. Ericaceae. 
(2) Ovules in each cell 2. Leaves usually com- 
pound. Anthers dehiscing by longitu- 
dinal slits. 128. 
* So also some Pittosporeae with an almost completely 
septate (usually 2-celled) ovary and 5 isomerous stamens, 
