XXV I. CARYOPHYLLE^E. 



255 



times forming a thin, layer on its^ dorsal surface, rarely (Velezia, sp., Diunthns). 

 EMBRYO more or less curved, peripheric or annular (Dry pis), or nearly straight in 

 the scutiform seeds ; cotyledons narrow, plano-convex or half-cylindric, incumbent 

 or very rarely accumbent ; radicle cylindric, inferior or superior. 



TRIBE I. SILENEJfi, D.C. 



Sepals united into a 5-toothed or -lobed calyx. Petals and stamens hypogynous, 

 inserted on an erect gynophore, rarely sessile. Petals with scales at the top of the 

 claw, or naked. Styles completely distinct. Leaves exstipulate. 



1. Lychnideae. Corolla, twkted or imbricate in aestivation. Calyx with eommissural 

 nerves. Petals usually furnished at the base of the limb with scales forming a coronet, very 

 rarely with small winged bands at the claw (Agrostemma). Fruit 3 5-merous. Embryo 

 ai'ched, circular or coiled (JDrypis). 



PRINCIPAL GENERA, 



Petrocoplis. * AgTosleinma. * Lychnis. * Viscavia. 



Melandrmm. * Silene. Cucubalus. * Drypis, 



Melandrivm diuicnm. 

 9 flower. 



Mflandrium iliuicum , 

 Flower cut vertically (mag.). 



Melandrium dioicum . 



Androecinm surroundinfl 



an abortive pistil. 



Melandi ium dioicum 9 



Transvei-se eection of 



ovary (mag.). 



Drypis s/iinosa. 



Seed, entire and cut vertically, with 

 coili:d and incumbent uotyludons (mag.). 



Cuciilatlus baccifer. 



Seed, entire, and with vertical and transverse 



sections showing the incumbent cotyledons 



(mag.). 



