VASCULAR PLANTS. 77 



2. Spergularia, Pers - 



Ovary oo-ovulate; style 3 or 5-cleft. Capsule 

 3 or 5-valved. 



. It- flowers white, rosy. 



3. Pentacaena, Bart. 



Divisions of the calyx unequal, persistent in 

 fruit; the 3 external with cucullate apex, ending 

 in a spine; 2 internal mucronate. Petals 5, mi- 

 nute. Stamens 5 or 3. Ovary 1 -ovulate; style 

 2-cleft. Fruit a utricle. 0. 



Family XXXIX. Portulacaceae. 



Flowers regular, but parts not correspondent 

 in numbers. 



1. Portulaca, Tournef. 



Calyx tube connate with ovary; limb 2 part- 

 ed, free and circumscissile. Petals 4 or 6. 

 Stamens 8 or oo. Capsule circumscissile. 



0. U- 



2. Calandrinia, HBR. 



Sepals 2, persistent. Petals 5 or oo, equal. 

 Stamens opposite to the petals, variable in 

 number. Ovary oc-ovulate; style 3-cleft. Cap- 

 sule 3-valved, cc-seeded. 



. H- flowers rosy, pink, purple. 



3. Claytonia, L. 



Sepals 2, persistent. Petals 5, equal. Sta- 



