199 
1 House. II Males. Monoec. Diand. 
649. Hunched Duckweed, — L. gibba. 
Leaves sitting, hemisphaerical underneath, 
roots single. 
Ditches, July, P. Rare. 
Goldington, 
650. Great Duckweed. — L. polyrrhiza. 
Leaves sitting, roots crowded. — Ray’s Sy- 
nopsis. IV. 2. 
Ohs: 
Leaves red underneath, 
1 House. Ill Males. Monoec. Triand. 
Reed Mace. Typha. Gen. PI. 1401. 
Male. — Catkin cylindrical. Cup indistinct- 
ly 3-leaved. Blossom none. 
Female. — Catkin cylindrical, below the male 
flowers. Cup with a hair-like wool. 
Blossom none. Seed i, sitting on a hair- 
like down. 
651. Broad-leaved Reed Mace. — T. latifolia. 
Leaves somew^hat sword-shaped, male and 
female spikes close together. — Curtis. III. 
61. 
Stagnant Water, June, P. Common. 
^52. Small Reed Mace. — T. angustifolia. 
Leaves 
