GENERA Oil FAMILIES. 149 



ft Valves or teeth of the capsule twice as many as the styles. 



(50) Arenaria — sepals five ; petals five, entire or slightly emar- 



ginate ; styles two or three ; capsule opening with four to 

 six valves. 



(51) SteUaria — sepals five; petals five, bifid; styles three; cap- 



sule opening with six valves or teeth, many-seeded. 



(52) Malachium — sepals five ; petals five, bifid or entire ; styles 



five; capsules opening with five bifid, not deeply-cleft, 

 valves. 



11. Illecebraceous Plants. iLLECEBRACEyE. 



* Capsule one-celled^ many-seeded. 



(53) Spergula — sepals and petals five, entire ; stamens ten or five : 



styles five ; capsule five-valved ; leaves apparently whorled. 



(54) Spergularia — sepals five, flattish ; petals five, entire ; sta- 



mens ten, sometimes only five ; styles usually three ; cap- 

 sule three- to five-valved ; leaves opposite. 



(55) Polycarpon — sepals keeled on the back, hooded at the end ; 



petals five, minute, emarginate ; stamens three to five ; 

 styles three ; capsule three-valved. 



** Capsule one-seeded. 



(56) Corrigiola — petals five, oblong, equalling the sepals ; sta- 



mens five ; stigmas three, sessile. 



(57) lUecebrum— sepals thickened, horned at the back ; petals 



five subulate, or wanting ; stamens five ; stigmas two. 



12. Elatinaceous Plants. Elatinace^. 



(58) Elatine— capsule three- or four-celled, many-seeded. 



13. Linaceous Plants. Linages. 



(59) Linum — sepals, petals, stamens, and styles, five each ; cap- 



sule ten-celled, ten-valved. 



