34 DOUGLAS' JOURNAL 



In all likelihood this is the tree which Mr. Taylor of St. John's prizes so 

 highly for shipbuilding and considers superior to any except Q. wrens. 



3. QuERCUS MACEOCAEPA. Over-cuf White Oak. 



Q. macrocarpa. Foliis obovatis profunde lyratim sinuato-ldbatis Idbis 

 superne dilatatis dbtusis, subtus pubescentibus, fructu late ovato {maximo), 

 cupula craterata squamosa margine fimbriata. 



Q. macrocarpa, Michx. f. N. Am. Sylv. p. 35, t. 4 ; Pursh, Fl. Am. Sept. 



V. 2, p. 632 ; Willd. Sp. PL v. i, p. 453. 



Q. macrocarpa, Willd. Sp. PI. 4, p. 453; Michx. Hist. Chenes Am. n. 2, t. 2, 3; 

 Michx. f. Hist. Arb. Am. 2, p. 34, t. 3; Pursh, Fl. Am. Sept. 2, p. 632; Nutt. Gen. 2, 

 p. 215 ; Sm. in Rees' Encyc. 29, part 1st. n. 80. 



A species undoubtedly, in its foliage as well as its fruit, nearly allied 

 to the preceding. The leaves are much shorter, however, and broader, 

 of a deeper green hue, with the margins far less deeply cut, the lobes 

 shorter, broader, and far more dilated upwards. The acorns are among 

 the largest of the genus, and much broader in proportion to their length 

 than those of Q. olivaeformis, but the cup is similar in its structure, 

 downy and scaly, the upper scales lengthened into long hair-Uke 

 points, which form a dense fringe around the margin. Plentiful on the 

 shores of Lake Erie, near Amherstburg, and on the eastern shore of Lake 

 St. Clair, Upper Canada, in dry sand and gravel, from 45 to 70 feet in 

 height and from 8 to 10 feet in circumference. 



Puish gives its habitat as Kentucky, Tennessee, IlUnois, Mississippi, 

 and Missouri, within the mountains, on dry slate or limestone hills. 



Said by Pursh to attain a large size on the AUeghany, its wood is of 

 an excellent quality and is much used. The clusters of its large acorns 

 with their mossy fringed cups, and the beauty of its deeply lobed leaves, 

 give to this tree a singularly graceful aspect. 



Q. macrocarpa j3 pendula ramis pendulis. 



The variety is from 20 to 40 feet high and 2 or 3 feet in diameter, its 

 branches drooping, leaves similar to those of Q. macrocarpa, acorns also 

 large, but constantly borne in pairs at the extremity of the shoots, which 

 is not the case in the general state of the tree. 



Q. sp.i — ^From 70 to 100 feet high and 10 to 14 in circumference, 



leaves deeply lobed, pubescent imdemeath, and constantly smaller than 



made : I considered it at that time a variety of macrocarpa, and two other kinds, I 

 have given Mr. Douglas these specimens ; and I am happy to see by his specimens he 

 has discovered two or three kinds more. I doubt not but they are species, they are all 

 of the Mossy Cup kinds, they seem to be intermediate from the bicolor of Pursh, to the 

 macrocarpa of Michaux. It is certainly very singular these oaks should have been 

 overlooked : Michaux never saw the olivaeformis on the Hudson river ; and I think it 

 very probable that Pursh saw some of the intermediate kinds in Pennsylvania but not 

 the olivaeformis. I am inclined to beUeve the plant I now send you is the only one in 

 England, perhaps in Europe. I have one large tree ; I made several grafts from it, 

 but this is the only one that grew. I shall try it next spring.' 



Added to this, in Sir W. J. Hooker's handwriting, is the following (Ed. ) : — 

 ' I do not understand this note. Q. elongaia is the Querctis falcaia of Michaux 

 [see Number 26], not Q. olivaeformis. It had better perhaps be inserted, in the form of 

 a NOTE to Q. olivaeformis (Mossy-cup Oak) and the name olivaeformis substituted for 

 Q. dongata.' 



1 'There is no specimen corresponding to this in Douglaa's "Herbarium" sent to 

 me. — H.' [This note was probably made by Sir William Jackson Hooker. — Ed.] 



