158 ARACE.E. 



6. ORNITHOGALUM. Perianth of 6 spreading segments, persistent 



St. 6, with flattened filaments. Leaves linear, channelled. 



7. GrAGEA. Perianth spreading, of 6 segments, distinct. St. 6. 



Filaments filiform. Fl. yeUoiv, corymbose. 



8. TtfLiPA. Perianth campanulate. Segments 6, free from the 



base, acute, and "bearded at the apex." Style 0. Stigma 

 3-lobed. 



9. TOFIELDIA. Flowers in racemes, with 3 small connate brac- 



teoles. Perianth 6-partite, with the st. seated on the base. 

 Styles 3, with obtuse stigmas. FL small, pale yellow. 



ORD. 81. JUNCACE.E. 



1. JUNCUS. Leaves nearly cylindrical. Perianth glumaceous. 



St. 6, inserted into the base of the segments. Stigmas 3. 

 Capsule 3-celled, 3-valved. 



2. LUZULA. Leaves flat, generally hairy and soft. Perianth 



nearly glumaceous. St. 6. Stigmas 3, Capsule 1 -celled, 

 3-valved, 3-seeded. 



3. NARTHECIUM. Perianth coloured on the inside, segments 



narrow, spreading. Filaments woolly. Capsule pyramidal, 

 3-celled at the base, 3-valved. Seeds appendaged. Flowers 

 yellow. 



ORD. 82. ALISMACE.E. 



1. ALISMA. Flowers perfect. St. 6. Carpels arranged in a circle, 



or in a globular head. 



2. SAGITTARIA. Flowers monoecious. St. numerous. Fertile fl. 



with many compressed carpels forming a head. 



3. TRIGLOCHIN. Flowers perfect. St. 6. Anthers almost sessile. 



Stigma sessile, feathery. Ovaries 3 6. 



ORD. 83. TYPHACE.E. 



1. TYPHA. Flowers monoecious. Spadix cylindrical. Stamens 



surrounded by a few hairs. Filament 1, with 3 anthers. 

 Fertile fl. with a stalked ovary, surrounded by hairs. 



2. SPARGANIUM. Flowers monoecious. Barren and fertile flowers 



in globular heads. Perianth of 34 segments or scales. 

 Fruit sessile. 



ORD. 84. ARACE.E. 



1. ARUM. Spatha convolute, enclosing the spadix. Fertile fl. 



at the base. Perianth none. Berry 1 -celled. Anther sessile, 

 2-celled. 



2. ACORUS. Spadix sessile. Spatha leaf -like, flat. Perianth of 



6 scales. St. 6. Ovary 3-celled. 



