24 FIELD AND WOODLAND PLANTS 



83. Alismace.^. — Aquatic jDlants with radical, net-venied leaves ; 

 and consi^icuous, white, perfect flowers. Perianth of 6 parts. Stamens 

 6 or more. Carpels numerous, and distinct or nearly so. (The Water- 

 plantain Family.) 



84. Naidace.^. — Aquatic plants with mostly floating or submerged 

 leaves ; and inconspicuous flowers. Perianth of 4 to 6 scales, or absent. 

 Stamens and carpels 1 to 6. (The Pond- weed Family.) 



85. Lemnace.e. — Minute floating plants, with green, cellular fronds, 

 rarely flowering. Flowers very small, enclosed in a bract. Stamen 1. 

 Ovary one-celled. Ovules 1 to 7. (The Duckweed Family.) 



8G. Arace.^. — Herbs with net-veined, radical leaves ; and small 

 flowers on a fleshy spadix enclosed in a leafy sheath. Perianth of 6 parts, 

 or absent. Stamens 1 to 6. Ovary of one to three cells. Fruit berry- 

 like. (The Cuckoo Pint Family.) 



87. Typhaceje. — Erect marsh plants, with long, narrow leaves ; 

 and small monoecious flowers in conspicuous spikes or heads. Peiianth 

 absent. Stamens many. Fruit a one-seeded drupe. (The Reed-mace 

 Family. ) 



88. Jtjncace.e. — Rush-like herbs, with cylindrical or narrow leaves, 

 and small, brown flowers. Perianth membranous, of 6 parts. Stamens 

 6. Carpels 3. Fruit a 3-valved capsule. (The Rush Family.) 



89. Cyperace^. — Grassy herbs, with usually solid, triangular stems ; 

 and linear leaves, with tubular sheaths. Flowers in spikelets, unisexual or 

 perfect. Stamens 1 to 3. Carpels and stigmas 2 or 3. (The Sedge 

 Family.) 



90. Gramine.^. — Grassy herbs, with hollow stems ; and linear leaves, 

 with split sheaths. Flowers usually perfect. Stamens usually 3. 

 Stigmas 1 or 2. (The Grass Family.) 



