. Handbook of the trees of the northern states and Canada east of the Rocky Mountains, photo-descriptive . Trees. Handbook of Trees of the Nortiieen States and Canada. 73 This curious and rare tree has the distinc- tion of producing wood which is the lightest in weight of all known woods, it is a small tree, only under the most favorable con- ditions attaining the height of 20 ft. with loose open head of few spreading branches and trunk 5-0 in. in diameter. Few other trees are so strictly aquatic in distribution, as it thrives best in permanently inundated swamps and deep sloughs, where its ro
. Handbook of the trees of the northern states and Canada east of the Rocky Mountains, photo-descriptive . Trees. Handbook of Trees of the Nortiieen States and Canada. 73 This curious and rare tree has the distinc- tion of producing wood which is the lightest in weight of all known woods, it is a small tree, only under the most favorable con- ditions attaining the height of 20 ft. with loose open head of few spreading branches and trunk 5-0 in. in diameter. Few other trees are so strictly aquatic in distribution, as it thrives best in permanently inundated swamps and deep sloughs, where its roots are constantly wet, and to visit it one must go in a boat or wade through mud and water. Individuals growing in less permanently inundated locali- ties, where the water supply is less constant, plainly suffer the deprivation and hardly grow to the height of a man's shoulder. It attains its largest size in the swamps which border the St. Francis River of Missouri and Arkansas, growing in the shade of other swamp loving trees as the Bald Cypress, Cotton Gum, Planer Tree, Pumpkin Ash, etc. Separated from this localitj' by a long interval it appears again in the saline marshes of the Gulf coast of Florida near Appalaehicola, where it was first found and made known to science. Far to the westward it is also found in the swamps along the Brazos River near Columbia, Texas. The trunks are vested in a smooth mottled gray bark slightly fissured at their bases, which are much swollen beneath the water line and usually bearing a mass of dark moss and rootlets. The wood is of a pale lemon yellow color with lighter sap-wood. It is lighter than cork in weight, having a specific gravity, as re- ported by Prof. Trelease, of , while that of common cork (the bark of Quercus suber, etc.) is It is occasionally used by fishermen for making floats for their nets. For botanical characters see the ordinal and generic descriptions, this being the only I. For ijenus see p.
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