GENERA OR FAMILIES. 177 



(289) Tofieldia perianth-leaves persistent ; flowers in short 



spikes. 



ft EootstocJc bulbous. 



(290) Allinm perianth-leaves rather spreading ; flowers umbel- 



late. 



70. Alismaceous Plants. ALISMACE^I. 



* Perianth-segments six, large, coloured, nearly equal. 



(291) Butomus perianth coloured, resembling a corolla ; sta- 



mens nine. 



** Perianth-segments three large coloured, and three small 

 herbaceous. 



(292) Alisma flowers perfect ; calycine and corolline segments 



three each ; stamens six ; carpels numerous, one-seeded. 



(293) Actinocarpus flowers perfect ; calycine and corolline seg- 



ments three each ; stamens six ; carpels 6-8, spreading in 

 a radiant manner, two-seeded. 



(294) Sagittaria flowers monoecious ; male flowers with nume- 



rous stamens ; female flowers with numerous one-seeded 

 compressed carpels upon a globose receptacle. 



** Perianth-segments all small, and but slightly coloured. 



(295) Triglochin perianth of deciduous leaves ; stamens six ; 



carpels attached to an angular axis from which they at 

 length separate at the base. 



71. Juncaceous Plants. JUNCACE.E. 



(296) Juncus perianth glumaceous, six-leaved ; capsules three- 



celled, three-valved. 



(297) Luzula as in Juncus, but the capsules one-celled, three- 



valved. 



