DODECANDRIA. 



ORDER IV. PENTAGYNIA. 5 Pistils, 

 * Perianth inferior ; carpels 5. 



20. SIBBALDIA. Petals and stamens inserted on the 

 mouth of the calyx. A humble alpine plant, with ter- 

 nate leaves and yellowish flowers, of which the stamens 

 and pistils are very variable in number. BOSE TRIBE. 

 P. 171. 



C Petals and stamens inserted in the 



21. COTYLEDON. I b ? tt ? m of th ? ^"Sf^fT 



900 -j plants, remarkable for their thick, 



I fleshy leaves. STONECROP TRIBE. 

 IP. 232. 



* Perianth inferior ; capsule 1. 



23. OXALIS. Sepals 5 ; petals 5 ; capsule 5-celled ; 

 seeds enclosed each in an elastic case. Herbaceous plants 

 with ternate leaves and delicate flowers. WOOD-SORREL 

 TRIBE. P. 131. 



24. SIU^NE*. 25. LYCHNIS. 26. AGROSTEMMA. 

 27. STELLARIA. 28. CERASTIUM. Sepals 5 ; petals 



5 ; capsule 1 -celled. Herbaceous plants with opposite 

 leaves and terminal flowers. PINK and CHICKWEED 

 TRIBES. P. 87. 



* * Perianth superior. 



29. ADOXA. Flowers in a terminal head. A delicate 

 little plant, with a few bright green leaves, and a round 

 head of green flowers. IVY TRIBE. P. 286. 



CLASS XL DODECANDRIA. 12 to 18 Stamens. 

 ORDER I. MOM3GYNIA. 1 Pistil. 



1. ASARUM. Perianth single, 3-cleft. An herbaceous 

 plant, with 2 shining leaves and a solitary, drooping, 

 greenish flower. BIRTHWORT TRIBE. P. 547. 



LYTHRUM. Calyx with 12 divisions, alternately 

 smaller ; petals 5. Herbaceous plants with 4-cornercd 



