XXVI. CAEYOPHYLLE^. 



255 



limes forming a thin layer on its dorsal surface, rarely {Velenia, s^.,Biantlius). 

 Embryo more or less curved, peripheric or annular {Drypis), or nearly straight in 

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

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



Tribe I. SILENEJE, B.C. 



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

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

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



1. Lychnideee. — Corolla twisted or imbricate in aBstivation. Calyx with commissTiral 

 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 

 arched, circular or coiled (_Drypis). 



PRINCIPAL GENBRA. 

 Petrocoptis. * Agrostemma. * Lychnis. * Viscavia. 



Melandriiini. * Silene. Ciicubalus. ' Drypis. 



9 flower. 



°^yOtiVii .MvbmdHum 



' ft dimewn., 



°^-^ Calyx. 



Mehmdrium-dioicum ^. 

 Diagram. 



MelandHumdioicum S • 



Androecium surrounding 



an abortive pistil. 



JH^landi'ium dioicum 9 



Transverse section of 



ovary (mag.). 



'iUlm^^^f^ it Drypis spinosa. 



dUiisum. ^M//y( Seed, entire and cut vertically, with 

 Fct.'U. coiled and incumbent cotyledons (mag.). 



Cucubalus baccifer. 

 Seed, entire, and with vertical and transverse 

 sections showing the incumbent cotyledons 

 (mag.). 



