AMERICAN OAKS 43 



22. QUERCUS HEMISPHAERICA. 



Q. hemisphaerica. Foliis perennantibus oblongo-lanceolatis indivisis 

 trilobis sinuatisgue, lobis mucronatis, utrinque glabris. Pursh. 



Q. hemisphaerica, Michx. Hist. Chenes Am. t. 20, f. 2 ; Willd. Sp. PI. 

 v. 4, p. 443 ; Bartr. Itin. p. 320 ; Michx. Hist. Chenes Am. t. 20, f . 2 ; 

 Pursh, FL Am. Sept. v. 2, p. 628. 



Q. hemisphaerica, Willd. Sp. PL 4, p. 443 ; Pursh, Fl. Am. Sept. 2, p. 628 ; Nutt. 

 Gen. 2, p. 214 ; Sm. in Rees' Encyc. 29, part 1, no. 55. 



Inhabits Georgia and Florida, but seems now to be generally considered 

 a var. of Q. aquatica. 



23. QUERCUS TRILOBA. Downy Black Oak. 



Q. triloba. Foliis oblongis cuneiformibus basi acutis, lobis aequalibus 

 mucronatis, intermedia longiore, subtus tomentosis, cupula scutellata, glande 

 depresso-globosa. Pursh. 



Q. triloba, Michx. Hist. Chenes Am. 14, t. 26. Willd. Sp. PL v. 4, 

 p. 443 ; Pursh, Fl. Am. Sept. v. 2, p. 628. Q. cuneata, Wangenh. 

 Nordam. Holz. p. 78, t. 5, f. 14. 



Q. triloba, Willd. Sp. PI. 4, p. 443 ; Ait. Hort. Kew. ed. 2, 5, p. 291 ; Abbot 

 Insect. 1, p. 99, t. 50 ; Michx. Hist. Chenes Am. n. 14, t. 26 ; Pursh, Fl. Am. Sept. 2, 

 p. 628. 



Nuttall makes this the var. ft of Q. falcata (Spanish Oak). The 

 younger Michaux does not notice it. The elder says it forms a tree from 

 20 to 40 feet high, is of rapid growth, and extremely well suited for 

 enclosing lands, which Pursh copies and adds, in pine-barrens, near the 

 sea coast, New Jersey to Georgia. 



24. QUERCUS NIGRA. Barren Oak or Black Jack Oak. 



Q. nigra. Foliis cuneatis basi subcordatis apice dilatatis abruptis 

 breviter lobatis, lobis mucronatis subtus ferrugineis, cupula hemisphaerica 

 sqwamis membranaceis, glande breviter ovata. 



Q. nigra, Linn. Sp. PL 1413; Pursh, FL Am. Sept. v. 2, p. 629. 



Q. ferruginea, Michx. f. N. Am. Sylv. v. 1, p. 95, t. 20. 



Q. nigra, Willd. Sp. PI. 4, p. 442; Sm. in Rees' Encyc. 29, part 1, no. 53 ; Sm. 

 in Abbot Insect, t. 58 ; Ait. Hort. Kew. ed. 2, 5, p. 291 ; Pursh, Fl. Am. Sept. 2, 

 p. 629 ; Nutt. Gen. 2, p. 214. Q. ferruginea, Michx. Hist. Chenes Am. n. 12, t. 22, 23 ; 

 Michx. f . Hist. Arb. Am. 2, p. 92, t. 18 ; Mill Diet. no. 10 ; Quercus (forte) Marilan- 

 dica folio trifido ad sassafras accedente, Raii, Catesb. Car. 19, t. 19. 



From 20 to 30 feet high, trunk small and scrubby, principally used for 

 fuel, for which purpose, according to Michaux, it is held next in estimation 

 to the Hickory ; seldom more than 2| feet in diameter. Said to be 

 greatly used and very durable. Abundant in dry barren soil, from 

 Burlington to South Amboy, New Jersey. 



Pursh places it in barren sandy or gravelly woods, New Jersey to 

 Florida, and says it bears abundantly a fine mast for hogs. 



25. QUERCUS ILICIFOLIA. Bear Oak, called also Black Scrub Oak 

 and Dwarf Red Oak. 



Q. ilicifolia. Foliis obovato-cuneiformibus 3-5-lobis, lobis acutis mucro- 



