OKDER 21. PINKWORTS. 



175 



ORDER XXI. CARYOPHYLLACE^. Pinkworts. 



Fig, 406. Pink (Pheasant's-eye) : 6, the bracts ; r, the tubular calyx. Fig. 407. The ovarj 

 with Its 2 f tyles, Fig. 408. A petal of the Diurnal Lychnis, 2-cleft : c, the claw. Fig. 400 

 Arenaria stricta, showing the spreading cyme. Fig. 410. A flower enlarged, calyx not tubular 



Herts with the stems swelling at the nodes ; opposite, entire leaves ; 

 sepals 4 or 5, sometimes distinct and sometimes united into a tube; 

 petals 4 or 5 (sometimes 0), with or without claws, hypogynous ; 

 stamens generally twice as many as the petals; styles 25; 

 fruit a 1-celled (rarely 2 5-celled) capsule with numerous seeds, and an 

 embryo coiled around fleshy albumen. 



Analysis of the Genera, 



Stipules dry, scale-like, between the leaves at base.... 6 



| Slipnlcs none 2 



2 Sepals united into a tube. Petals with long claws.... 3 

 2 Sepals distinct or nearly so. Petals sessile or none 4 



3 Calyx with 2 or more bractlets at base a 



o Calyx naked, i. e., with no bractlets b 



4 Pcd 1-celled and with several seeds. Petals generally present 6 



4 I'od 1-celled, with 1 need. Pc-tals none, calyx green.... g 

 4 Pod completely 3-ce!lad. Petals none, calyx white.... b 



5 Petals 2-parted or 2-lobed....c 



5 Petals undivided and entire d 



