42 DOUGLAS' JOUENAL 



X X Leaves sinuate lobate or toothed. 



19. QUEKCUS AGEIFOLIA. 



Q. agrijolia. Foliis siihrotundo-ovatis subcordatis utrinque glahris 

 remote sfinoso-dentatis, cupula Jiemisphaerica, squamis laxis, glande ovata 

 acuta. — Puish. 



Q. agrifolia, Nee in Anal. Cienc. Nat. 3, p. 271 ; WiUd. Sp. PI. v. 4, 



p. 431 ; Pursh, Fl. Am. Sept. v. 2, p. 627. 



Q. agrifolia, Willd. Sp. PI. 4, p 431 ; Nee in Anal. Cienc. Nat. 3, p. 271, an Hex 

 folio agrifolii americana, forte agria vel aquifolia glandifera ? Pluk. Phytogr. t. 196, 

 f. 3 ; Sm. in Rees' Enoyo. 29, part 1st, no. 29 ; Pursh, Fl. Am. Sept. 2, p. 627 ; Nutt. 

 Gen. 2, p. 214. 



Found upon the north-west coast of America, about Nootka Sound, 

 but of the value of its timber nothing is known. 



20. QuERCUS HETEEOPHYLLA. Bartram' s Oak. 



Q. heterophylla. Foliis longe petiolatis ovato-lanceolatis oblongisve integris 

 vel inaequaliter grandidentatis, cupula Jiemisphaerica, glande subglobosa. 



Q. heterophylla, Michx. f. N. Am. Sylv. v. 1, p. 90, t. 18 ; Pursh, Fl. 

 Am. Sept. V. 2, p. 627. 



Q. heterophylla, Miohx. f. Hist. Arb. Am. 2, p. 87, t. 16 ; Pursh, Fl. Am. Sept. 2, 

 p. 627 ; Nutt. Gen. 2, p. 214. 



All that is known of this oak is from a single tree upon the banks of the 

 Schuylkill, in a field belonging to Mr. Bartram's farm, near Philadelphia ; 

 Pursh says on the banks of the Delaware. Michaux considers it to be a 

 good species ; Pursh supposes it may be a hybrid, but he does not say 

 between what species ; and Nuttall asks if it may be an anomalous 

 variety of Q. coccinea. 



21. Qdeecus aquatica. Water Oak. 



Q. aquatica. Foliis obovato-cuneiformibus glabris integerrimis apice 

 obsolete trilobis, lobo intermedia majore, cupula hemisphaerica, glande sub- 

 globosa. — Pursh. 



Q. aquatica, Michx. f. N. Am. Sylv. v. 1, p. 92, t. 19 ; WiUd. Sp. PI. 

 V. 4, p. 441 ; Pursh, Fl. Am. Sept. v. 2, p. 628. 



Q. nigra, Linn. Sp. PI. p. 1413 ; Q. uliginosa, Wangenh. Nordam. 

 Holz. p. 80, t. 6, f. 18. 



Q. agiiatica, Willd. Sp. PI. 4, p. 441 ; Walt. Fl. Car. 234 ; Q. foUo non serrato 

 in summitate quasi triangulari, Catesb. Car. 1, p. 20. t. 20 ; Michx. f. Hist. Arb. 

 Am. 2, p. 89, t. 17 ; Clay, Fl. Virg. p. 149 ; Sm. in Rees' Encyc. 29, part 1, no. 52 ; 

 Pursh, Fl. Am. Sept. 2, p. 628 ; Nutt. Gen. 2, p. 214. 



Q. nana, WUld. Sp. PI. 4, p. 443 ; Q. aquatica y elongata. Ait. Hort. Kew. ed. 2, 

 5, p. 290. Q. nana. Abbot Insect. 2, t. 59. Q. aquatica varietal, Mich. Hist. Chenes 

 Am. t. 20, f. 2. 



In swamps and around ponds from Maryland to Florida, rising to a 

 height of 40 to 45 feet, with a diameter in the stem of from 12 to 18 inches.' 

 The leaves are extremely variable and are either deciduous or remain 

 upon the tree for two or three years, according to the severity of the 

 winters of the climate in which they are found. Its timber seems to 

 be of very inferior quaUty. 



^ Sargent ' with a trunk from 2 to SJfeet indiameter.' — Syl. N. Am. viii. 165. — Ed. 



