Nat. Ord. (Natural Order) Coniferï¿½. Lin. Syst. (Linnean System) Monï¿½cia, Monadelphia. The Southern or Deciduous cypress (Taxodium distichum)* (* Cupressus disticha.) is one of the most majestic, useful, and beautiful trees of the southern part of North America. Naturally, it is not found growing north of Maryland, or the south part of Delaware, but below that boundary it becomes extremely multiplied. The low grounds and alluvial soils subject to inundations, are constantly covered with this tree; and on the banks of the Mississippi and other great western rivers, for more than 600 miles from its mouth, those vast marshes, caused by the periodical bursting and overflowing of their banks, are filled with huge and almost endless growths of this tree, called Cypress swamps. Beyond the boundaries of the United States its geographical range extends to Mexico; and Michaux estimates that it is found more or less abundantly, over a range of country more than 3000 miles in extent.