Handbook of Trees of the Northern States and Canada. 145 



This interesting and distinct Oak has only 

 recently been iiKule known to science, through 

 the keen observation of its discoverer whose 

 name it bears, it is an Oak of medium size 

 attaining tiie height vf tiO or 70 ft., with 

 short trunk 2 or 3 ft. in tliickness vested in 

 smootiiish or closely ribbed i>aik similar to 

 that of the Pin Oak. Similar to the I'in Oak. 

 too, is its habit of devtdopiiig an oblong top 

 of many upright and iiorizontal upper branches 

 and drooping lower branches, sending out many 

 small branches near tiie ground. .\s these 

 lowfM'most die ill eoii-.c(|uence of too imicii shade 

 from those ; bove, they break otl' and their 

 bases persist for some time as stul>s or pins 

 about the trunk and. as Mr. Hill suggests, it 

 is doubtless due to these that this and the 

 southern <^. pahiNtris are commonly called the 

 Pin Oaks. 



Unlike the southern species, which inhabits 

 mainly moist low-lands, this tree is rather an 

 inhabitant of well-drained uplands, though 

 sometimes found on the borders of ponds and 

 in low woods. As its habitat is north of that 

 of the other tree, the two ranges overlapping in 

 the" latitude of northern Indiana and Illinois, 

 and this is already known as the Pin Oak. I 

 suggest the name Northern Pin Oak as appro- 

 priate to distinguish it from the more southern 

 tree. 



L<ar(X oval to oh()vat('-oi-l)icnIar in onllino. .'5-7 

 in. loiii;. widi'-c-uneatc or tiimcatc at base, deeply 

 pinnalelv lohi'd witli niostlv ~>-~ narrow icpand- 

 dentate ■ lii-istle-tipiied lolx-s and wide rounded 

 sinuses, liistroiis sr'*''" above, paler and jilabrous 

 or nearly so l)eneath : ijetioles slender, glabrous. 

 1-2 in. long. Floircr.i with spreading recurved 

 styles. Fruit maturing the second year, solitary 

 or in pairs, short-peduncled or sessile with mostly 

 elliptiral chestnut-brown acorns Vi-% in. long and 

 half invested by the thick turbinate cup of thin 

 Email puberulous closely appressed scales. 



