WATER-PLANTAIN FAMILY 27 



long, in clusters of two, and cones only two to three 

 inches long, which often remain on the trees for many 

 years. This pine also grows in dry sand in the interior. 

 The pond pine, P. serotina, found in low grounds, has 

 leaves 6 to 10 inches long, in clusters of three, and cones 

 two inches long. 



Cypress (Genus Taxodium) 



Florida species of cypress are deciduous trees of wet 

 soil, and are remarkable for peculiar upright growths of 

 spongy wood, known as knees, which are developed on the 

 roots, and are believed to be of use in aerating them. The 

 great bald cypress, T. distichum, has narrow, spreading 

 leaves, about half an inch long. The pond cypress, T, 

 ascendens, has smaller leaves, appressed to the branches. 

 The trunks of both are often enlarged at the base and 

 buttressed by stout ridges. The cones, about an inch in 

 diameter, are almost globular. 



MONOCOTYLEDONS 



Pages 27-63 

 Plants with one seed-leaf. Veins of leaves usually parallel. 



WATER-PLANTAIN FAMILY {Alismaceae) 



Water or marsh plants. Leaves basal. Flowers white, petals 3. 

 Fruit a dense head of achenes. 



Arrow-Head (Genus Sagittaria) 



Among the many plants found in the shallow water of 

 lake borders and streams, and blooming in Florida during 

 winter as well as summer, arrow-heads are easily identified 



