362 



MANUAL OF BOTANY 



B. Ovary inferior, or partially so. 



a. Leaves without stipules. 



1. Placentas parietal. 



Petals definite in number, distinct from the 



calyx ... . Loasacece. 



Petals indefinite in number, gradually pass- 

 ing into the sepals . Cactaceee. 



2. Placentas in the axis. 

 Leaves with transparent dots. 



Ovary 1-celled . . ChamcBlauciacecB. 



Ovary with more than one cell . . Myrtacecs. 



Leaves without dots. 



Petals very numerous . . . Mesembryanthace(B. 



Petals definite in number. 



Petals narrow and strap-shaped . . Alangiacece. 

 Petals roundish and concave. 

 Styles united Barringtoniacece. 



Styles distinct . . . PhiladeVphacece. 



b. Leaves with stipules. 



1. Carpels more or less distinct, or solitary . Posacece (part). 



2. Carpels wholly combined [at least as to the 



ovaries). 



Leaves opposite ... . . Phizophorace(E. 



Leaves alternate. 

 Placentas axile . . . Lecythidaceee, 



Placentas parietal .... JSomaliacecB. 



2. Flowers with fewer than 20 stamens. 

 A. Ovary wholly superior. 

 a., heaves without stipules. 



1, Carpels more or less distinct, or solitary. 

 Carpels with hypogynous scales. 

 Each carpel having one scale 

 Each carpel having two scales 

 Carpels without hypogynous scales. 



Carpels soUtary, or all but one imperfect. 

 Leaves without dots. 



Ovules collateral, ascending, sessile 



;. Carpels more or less combined {at least by 

 their ovaries). 

 Placentas parietal. 



Flowers with a ring or crown. 

 Flowers unisexual . ■ • 

 Flowers hermaphrodite . 

 Flowers without a ring or crown 

 Placentas in the axis. 



Styles distinct to the base. 



Crassulaceee. 

 FrancoacecE. 



Connaracece. 



PapayacecB. 

 MalesherbiacecB. 

 Turner ace(B. 



