II 



ANDuooK ov Trek.' 



:s OF Tin 



XoK'j'iiKKx States and Canada. 1!; 



The Haekberry in the forests of the rich 

 bottoiii-hiiuls of iiie Ohio River basin some- 

 times exceeds 100 ft in lieight and its trunk 

 is sometimes 4 or 5 feet in diameter, but wlien 

 in dryer soil of regions more unfavorable (o 

 its growth it is a much smaller tree. When 

 isolated it develops an ovoid or oblong top of 

 many small branches and fine branehlcts. It 

 is abundant in the Mississippi basin, but in 

 tlie northeastern states and Canada so unconi- 

 man or local in its distribution as not to lie 

 generally known by the country people when 

 it is observed, and strange names arc often 

 "ivcn to it. Two large trees having emisidera- 

 lile local celebrity as " Unknown Trees" (one 

 near Palatine Bridge and the other near Sehuy- 

 lerville. X. Y, ) I have found upon examina- 

 tinn to be of tliis specii's, anu my father lias 

 told nie of having had several similar e.\- 

 periences. 



The leaves of the trees of this species in 

 tlic Black River valley of northern New York 

 commonly show an interesting variegation in 

 mid-snmmer and becoming more marked as 

 the season advances. This 1 am informed liy 

 Dr, B. T. Galloway is due to a |iarasitic fungus, 

 known as the PhylliixHi-hi ('cltidis E. & K. 



The wood is rather heavy, a cubic foot when 

 absolutely dry weighing 45,40 lbs, and is used 

 in the manufacture of furniture and agricul- 

 tural implements, for fuel, fences, ctc- 



Lrnrrfi inoqnilaterak ovate, more or less falcate, 

 rtninded or cordate oi' taperinsr and oblique at base, 

 cnarsely serrate, thin. prontiDcntly reticulate, 

 liu'ht ffreen and smooth or roiejhish abo\c, jialcr 

 and srlabrous or nearly so hencalh, Fhnrcr.'i as 

 described for the genus, Fniil snh2:lol)ose or ob- 

 lon.i;, about 14 in. Ions, with thick dark purple 

 skin, yellowish flesh and smooth [lif.^ 



\n\\ fniniila (;ra,\', is a shruljh.v form of the 

 Seuthern states. thronp:h Missouri and westward, 

 with small and more ruffose leaves, 



1, Including- (', Liassifulia Lam, and (', <-uiuiin 

 Hat, Some botanists consider these distinct, but 

 tenable directive characters do not seem Iri e,\is( 



,\, 



W„ I, 12, 



' genus see pp. 







