CARYOPHYLLACEAE 



125 



Famii,y 9. CARYOPHYLLACEAE Reichenb. Pink Family. 



Sepals united : ovary stipitate : petals clawed. 

 Calyx-tube with at least twice as many ribs as lobes. 

 Styles 5. 

 Calyx-lobes f oliaceous, alternate with the styles. i . Agrostemma. 



Calyx-lobes small, opposite to the styles. 2. Lychnis. 



Styles 3 or rarely 4. 3. Silene. 



Calyx with 5 ribs, nerved or nerveless. 

 Petals appendaged at the base of the blade. 4. Saponaria. 



Petals unappendaged. 

 Calyx-tube 5-angled, without bractlets. 5. Vaccaria. 



Calyx-tube terete or nearly so, subtended by bractlets. 6. Dianthus. 

 Sepals distinct : ovary sessile : petals not clawed. 

 Stipules wanting. 

 Petals 2-cleft or 2-parted. 

 Capsules relatively short, ovoid or oblong. 7. Alsine. 



Capsules relatively long, cylindric. 8. Cerastium. 



Petals entire, toothed or slightly notched. 

 Styles as many as the sepals. 9. Sagina. 



Styles fewer than the sepals. 

 Petals entire or emarginate : flowers in dichotomous or capitate cymes, 

 or solitary. 

 Seeds not strophiolate. 10. Arenaria. 



Seeds strophiolate. 11. Moehringia. 



Petals toothed, flowers in umbel -like cymes. 12. Holosteum. 



Stipules present. 

 Leaves whorled : styles and valves of the capsule 5. 13. Spergula. 

 leaves opposite : styles and valves of the capsule 3. 14. TisSA. 



1. AG-ROSTEMMA L. 



1. Agrostemma Githago L. Corn Cocki,e or Campion. (Man. p. 

 388; I. F. y. 1438.) In grain fields and waste places, throughout iiortb- 

 eastern U. S.' Adv. from Eu., occurring also in nortliern Asia. — Pennsyl- 

 vania : Northampton ; Bucks ; Philadelphia ; Delaware ; Ches- 

 ter ; Lancaster ; Franklin ; Huntingdon ; Erie ; Delaware ; 

 Allegheny. 



2. LYCHNIS L. 



Calyx-lobes not twisted ; plants more or less pubescent or glandular, not woolly. 

 Mature calyx much enlarged or inflated. 

 Flowers opening in the evening : corolla white or pink. i. L. alba. 

 Flowers opening in the morning : corolla red. 2. L. dioica. 



Mature calyx campanulate. 3. L. Flos-cuculi. 



Calyx-lobes twisted : plants densely white-woolly. 4. L. Coronaria. 



1. Iiychnis alba Iv. Evening Lychnis. (Man. p. 392 ; I. F. /. 

 1455.') In waste places and on ballast, Ont. and in the Eastern and 

 Middle States. Adv. or Nat. from Eu. — Pennsylvania . Luzerne ; 

 Monroe ; Northampton ; Bucks ; Philadelphia. 



