J 



60 FOREST TREES OF NORTH AMERICA. 



WATER LOCUST. 



South Carolina to Matanzas iulet and Tampa bay, Florida, through tbeGnlf states to the valley of the Brazoa 

 river, Texas, and through Arkansas to middle Kentucky and Tennessee, southern Indiana and Illinois. 



A tree 12 to 18 meters in height, with a trunk sometimes 0.60 or, exceptionally, 0.90 meter in diameter; deep 

 swamps; rare in the south Atlantic and Gulf states ; common and reaching its greatest development in the bottom 

 lands of southern Arkansas, Louisiana, and eastern Texas, here often covering extensive areas. 



Wood heavy, very hard, strong, rather coarse-grained, compact, susceptible of a high polish; layers of annual 

 growth clearly marked by one to three rows of open ducts ; medullary rays thin, conspicuous ; color, rich bright 

 brown tinged with red, the thick heavier sap-wood clear light yellow ; specific gravity, 0.7342; ash, 0.73. 



88. Parkinsonia Torreyana, Wateon, 



Preo. Am. Acad, xi, 135. Brewer & Watson, Bot. California, i, 162. 



Cerddium floridum, Torrey in Pacific R. R. Rep. iv, 11, 82; v, 380, t. 3; Bot. Mex. Boundary Survey, 59. Gray in Ivet^ 

 Rep. 11. Vasey, Cat. Forest Trees, 12. James in Am. Nat. xv, 982. Hemsley, Bot. Am. -Cent, i, 327. 



GEEEN-BAEK ACACIA. PALO VEEDB. 



Colorado desert, southern California (Inio, Toras, etc., Parish Brothers), east to the valley of the lower Gil 

 river, Arizona. 



A low, much-branched tree, 8 to 10 meters in height, the short trunk sometimes 0.45 to 0.50 meter in diameter; 

 low caQons and depressions in the sandhills of the desert ; common and reaching its greatest development in th 

 valleys of the lower Colorado and GUa rivers. 



Wood heavy, not strong, soft, close-grained, compact, satiny, susceptible of a beautiful polish, containing many 

 small evenly-distributed open ducts ; medullary rays very numerous, thin ; color, light brown, the sap-wood clear 

 light yellow ; specific gravity, 0.6531 ; ash, 1.12. 



89. Parkinsonia microphylla, Torrey, 



Pacific E. R. Rep.iv, 82; Bot. Mex. Boundary Survey, 59. Walpers, Ann. vii, 812. Gray in Ives' Rep. 11. Bentham in Martins, Fl. 

 Brasil. xv, 78. Watson, PI. Wheeler, 8; Proc. Am. Acad, xi, 136. Brewer & Watson, Bot. California, i, 162. Hemsley, Bot. Am.- 

 Cent. i, 327. 



Valley of the lower Colorado and Bill Williams rivers, eastward through southern Arizona. 



A small, much-branched tree, 6 to 7 meters in height, with a trunk 0.25 to 0.30 meter in diameter ( Wickenburg, 

 Pringle), or often a low shrub 1 to 3 meters in height. 



Wood heavy, hard, coarse-gi-aiued, compact, containing numerous large, scattered, open ducts; medullary 

 rays numerous, thin, conspicuous; color, rich dark brown streaked with red, the sap-wood light brown or yellow; 

 specific gravity, 0.7449; ash, 3.64. 



90. Parkinsonia aculeata, Linnaeus, 



Spec. 1 ed. 375. Jacquin, Stirp. Am. 121, t. 80. Lamarck, 111. ii, 475, t. 336. Willdenow, Spec, ii, 513. ^Aiton, Hoit. Kew. 2 ed. iii, 



24. De Candollo, Mem. Leg. ii, t. 21; Prodr. ii, 486. Descourtilz, Fl. Med. Antilles, i, 54, t- 12. Macfadyen, Fl. Jamaica, 



3.34 Bentham, Bot. Sulphur, 87; Martius, Fl. Brasil. xv^ 78, t. 26. Cooper in Smithsonian Rep. lKi8, 265. Torrey, Bot. Mex. 



Boundary Survey, 59. Grisebach, Fl. British West Indies, 204; PI. Loreutz. 81. Gray, Hall's PI. Texas, 8. Brewer & Watson, 



Bot. California, i, 162. Vasey, Cat. Forest Trees, 12. Hemsley, Bot. Am.-Cent. i, 327. Watson in Proc. Am. Acad, xvii, 348. 



Corpus Christi, Texas, west along the Mexican boundary to the valley of the Colorado river, Arizona (Yuma); 

 and southward into Mexico; probably of American origin, but now widely naturalized throughout the tropical 

 and warmer regions of the globe {A. De GandoUe, Geog. Bot. ii, 719, 770, 793). 



A small tree, 6 to 12 meters in height, with a trunk sometimes 0.30 meter in diameter. 



Wood heavy, hard, very close-grained, inclined to check in drying, containing many evenly-distributed small 

 open ducts; medullary rays very numerous, thin, conspicuous; color, light brown, the very thick sap-wood lighter, 

 often tinged with yellow; specific gravity. 0.6116; ash, 2.32. 



