CATALOGUE OF FOREST TREES. 143 



Q. Prinus Chinquapin, Michaux f. Hist. Arb. Am. ii, Co, t. 10; N. American Sylva, 3 cd. i, 50, t. 11. A. Do Candollc, 

 Prodr. xvi', 21. 



Q. Chinquapin, I'ursli, Fl. Am. .Sept. ii, 634. Smith in Eees' Cycl. xxx, No. 48. Nuttull, Genera, ii, 216. Klliott, .Sk. ii, Gil. 

 Torrey, Couipeud. Fl. N. States, 354. Beck, Bot. 331. Eaton, Manual, 6 ed. 294. Darlington, Fl. (Jrstrk-a, 2t-d. 536. 

 Eaton & Wright, lint. >.">. liij-i-Iow, Fl. Boston. :i cd. 377. Emerson, Trees Massachusetts, 14(1; 2 cd. i, 15ft & t. 

 Darby, Bot. S. Stales, 511. 



Q. Prinus, var. oblongata, Aiton, Hort. Kcw. v, 290. 

 Q. Prinus, var. prinoides, Wood, Bot. & Fl. 3UO. 



Q. Muhlenbcrgii, Eugelmann in Trans. St. Louis Acad. iii, 591. G. D. Butler in Coulter's Bot. Gazette, iii, 77. Eidgway 

 in Proc. U. S. Nat. Mus. 1882, tt>. 



YELLOW OAK. CHESTNUT OAK. CHINQUAPIN OAK. 



Eastern Massachusetts, shores of lake Ohamplain, west along the northern shores of lakes Ontario and Erie, 

 through southern Michigan to eastern Nebraska, eastern Kansas, and the Indian territory; south to Delaware and 

 through the Allegheny region to northern Alabama and Mississippi, southwest to the Guadalupe mountains, 

 western Texas (Havard), 



A tree 24 to 30 or, exceptionally, 39 meters (Ridgway] in height, with a trunk O.GO to 0.90 meter in 

 diameter (Q. Muklenbergii), or often, especially toward the eastern and western limits of its range, reduced to a 

 low, slender shrub (Q. prinoides) ; dry hillsides and low, rich bottoms ; rare, except as a shrub, east of the Alleghany 

 mountains ; very common in the Mississippi River basin, and reaching its greatest development in southern 

 Arkansas. 



Wood heavy, hard, very strong, close-grained, checking badly in drying, very durable in contact with the 

 soil; layers of annual growth marked by rows of small open ducts; medullary rays broad, conspicuous; color,, 

 dark brown, the sap-wood much lighter; specific gravity, 0.8C05 ; ash, 1.14; used for cooperage, wheel stock, 

 fencing, railway ties, etc. 



The small acorns sweet and edible. 



NOTE. Differences in the size and habit of individuals of this species, thus enlarged, seem to be dependent upon soil and climate, 

 numerous intermediate forms connecting the extremes of eastern Massachusetts and the Mississippi valley. 



262. Quercus Douglasii, Hooker & Arnott, 



Bot. Beechey, 391. Hooker, Icon, iv, t. 382, 383. Benthain, PI. Hartweg. 337 ; Bot. Sulphur, 55. Nuttall, Sylva, i, 10, t! 4; 2 ed. 

 i, 20, t. 4. Torrey in Pacific E. E. Eep. v, 365 ; Bot. Wilkes Exped. 462. Cooper in Smithsonian Eep. 1858, 260 A. De Candolle, 

 Prodr. xvi 2 , 23. Bolander in Proc. California Acad. iii, 230. Orsted in Saerskitt. Aftryk. af. Nat. For. Viden. Meddelt. Nos. 1-6, 

 66. Liebmaun, Cheues Am. Trop. t. 41, f. 3, 4. Vasey, Cat. Forest Trees, 25. Engelmanii in Trans. St. Louis Acad. iii, 392 ; 

 Bot. California, ii, 95. Hall in Coulter's Bot. Gazette, ii, 91. 



Q. oblongifolia, var. brevilobala, Torrey in Bot. Wilkes Exped. 460. 



MOUNTAIN WHITE OAK. BLUE OAK. 



California, from about latitude 39, south along the western foot-hills of the Sierra Nevadas below 4,000 feet 

 elevation, and through the Coast ranges to the San Gabriel mountains. 



A tree 18 to 24 meters in height, with a trunk O.GO to 1.20 meter in diameter ; common on the low foot-hills 

 of the sierras. 



Wood very hard, heavy, strong, brittle, inclined to check in drying ; layers of annual growth marked by several 

 rows of small open ducts and containing many scattered groups of smaller ducts ;" medullary rays numerous, 

 varying greatly in width; color, dark brown, becoming nearly black with exposure, the thick sap-wood light 

 brown; specific gravity, 0.8928 ; ash, 0.84. 



263. Quercus oblongifolia, Torrey, 



Sitgreaves' Eep. 173 ; Bot. Mex. Boundary Survey, 206 ; Ives' Rep. 28. Cooper in Smithsonian Rep. 1858, 261. A. De Candolle, Prodr. 

 xvi-, 36. Watson, PI. Wheeler, 17. Vasey, Cat. Forest Trees, 26. Engelmaun in Trans. St. Louis Acad. iii, 393; Bot. California, 

 ii, 96. 



Q. undlllata, var. oblongata, Engelmann in Wheeler's Eep. vi, 250. 



