Quercus. CUPULIFE1UE. 91 



279. Quercus palustris, Du Roi. 



Pin Oak. Swamp Spanish Oak. Water Oak. 



Valley of the Connecticut River, Massachusetts, to central New York, 

 south to Delaware and the District of Columbia ; southern Wisconsin to 

 eastern Kansas, southern Arkansas, and southeastern Tennessee. 



A tree 24 to 30 or, exceptionally, 36 metres in height, with a trunk 

 0.90 to 1.50 metres in diameter ; low, rich soil, generally along the 

 borders of streams and swamps ; most common and reaching its greatest 

 development west of the Alleghany Mountains. 



Wood heavy, hard, very strong, coarse-grained, inclined to check badly 

 in drying; layers of annual growth marked by several rows of large open 

 ducts ; medullary rays broad, numerous, conspicuous ; color light brown, 

 the sap-wood rather darker; somewhat used for shingles, claoboards, 

 construction, and in cooperage. 



280. Quercus aquatica, Walt. 



Water Oak. Duck Oak. Possum Oak. Punk Oak. 



Southern Delaware, south through the coast and middle districts to 

 Cape Malabar and Tampa Bay, Florida ; tlirougli the Gulf States to the 

 valley of the Colorado River, Texas, and through Arkansas to south- 

 eastern Missouri, middle Kentucky and Tennessee. 



A tree 15 to 24 metres in height, with a trunk 0.60 to 1.20 metres in 

 diameter; generally along streams and bottoms, in heavy, undrained soil, 

 or, more rarely, upon uplands ; very common and reaching its greatest 

 development near the larger streams of the maritime pine-belt in the 

 eastern Gulf States. 



Wood heavy, hard, strong, coarse-grained, compact; layers of annual 

 growth marked by several rows of large open ducts ; medullary rays thin, 

 conspicuous; color rather light brown, the sap-wood lighter; probably 

 not used except as fuel. 



281. Qiiercus laurifolia, Michx. 

 Laurel Oak. 



North Carolina, south near the coast to Mosquito Inlet and Cape 

 Romano, Florida, and along the Gulf coast to the shores of Mobile 

 Bay. 



A large tree, 18 to 24 metres in height, with a trunk 0.90 to 1.20 

 metres in diameter ; most common and reaching its greatest development 

 on the rich hummocks of the Florida coast. 



Wood heavy, very strong and hard, coarse-grained, inclined to check 

 in drying ; layers of annual growth marked by several rows of rather 

 small open ducts ; medullary rays broad, conspicuous ; color dark brown 

 tinged with red, the sap-wood lighter. 



