CHECK LIST OF FOREST TREES 91 



NAME IX USE 



Blackjack Oak 



X Quercus brittonii Davis. Hybrid. 



Range. — New York (Watchogue, Staten Island); New Jersey (vicinity of 

 Ocean Grove). 



Note ox xomexclature. — Supposed to be a hybrid between Quercus mari- 

 landica Muenchhausen and Quercus ilicifolia Wangenheim. 



X Quercus bushii Sargent. Hybrid. 



Range. — Occurs in Oklahoma (Creek County); Mississippi (Lafayette 

 County); Alabama (Houston, Dallas, and Baldwin Counties); Florida (Levy 

 County); and Georgia (Decatur County). 



Note ox xomexclature. — Formerly designated as Quercus marilandicaX 

 velutina Bush, which are believed to be its parents. 



X Quercus hastingsii Sargent. 73 Hybrid. 



Raxge. — Central Texas (near Boerne, Kendall County, and at Brownwood, 

 Brown County). 



Note ox xomexclature. — Supposed to be a hybrid between Quercus marir 

 landica Muenchhausen and Quercus texana Buckley. 



X Quercus tridentata (de Candolle) Engelmann. Hybrid. 



Raxge. — Missouri (near St. Louis and Allenton; trees now destroyed) and 

 southern Michigan (near Ann Arbor, Washtenaw County; trees now destroyed); 

 southern Illinois (vicinity of Olney . 



Xote ox xomexclature. — Supposed to be a hybrid between Quercus mari- 

 landica Muenchhausen and Quercus imbricaria Michaux. 



X Quercus caroliniensis Trelease. Hybrid. 



Raxge. — North Carolina (Craven County) ; Georgia (Telfair and Decatur 

 Counties) ; Texas (Hardin County) . 



Note ox xomexclature. — Supposed to be a hybrid between Quercus mari- 

 landica Muenchhausen and Quercus cinerea Michaux. 



X Quercus sterilis Trelease. Hybrid. 



Raxge. — North Carolina (Bladen County), and possibly to be looked for in 

 Virginia. 



Note ox xomexclature. — Supposed to be a hybrid between Quercus mari- 

 landica Muenchhausen and Quercus nigra Linnaeus. 



X Quercus rudkinii Britton. Hybrid. 



Raxge. — New York (Long Island) and New Jersey (Keyport). Probably 

 elsewhere in the Atlantic Region. 



Note ox xomexclature. — Supposed to be a hybrid between Quercus mari- 

 landica Muenchhausen and Quercus phellos Linnaeus. 



*Quercus aigra Linnaeus. Water Oak. 



Raxge. — Southern Delaware to Florida (Indian River and Tampa Bay); 

 west to the Appalachian Mountains and through the Gulf States to Texas (Colo- 

 rado River) ; through Arkansas and eastern border of Oklahoma to southeastern 

 Missouri (Black River), middle Tennessee, and Kentucky. 



Note ox xomexclature. — Formerly designated as Quercus aquatica Walter. 



73 Excepting in its somewhat shallower lobes, the foliage of this recently discovered hybrid resembles 

 that of Quercus texana Buckley, while in the wide woolly scales of the cups and in the woolly twigs tho 

 Influence of Quercus marilandica Muenchhausen is clearly shown. First discovered by S. H. Hastings 

 in 1910 near Boerne (Sargent;. 



