Handbook of Trees of the Xorthekx States and Canada. 187 



Coinparpd witli the liriir cliiis nf tlie North- 

 ern States, tho \\'iri,-,'e(l Kliii is a tree of 

 medium size. It rarely attains a j^rcatcr lu'i^'ht 

 than 50 or (iO ft. or ^ival.T tliicknc-s of tniir,< 

 tliaii 2 ft., and wlicii isolated foi lus a >yin- 

 metrical ol)loii,- or ohovoid top. it iiihal)its 

 well drained upland- and th.' borders ,^f 

 swamps and streams, hein.u ni(i>t aliundant ia 

 tiie regions west of tiie Missi-si|)pi i;i\er in 

 t'onipany with tlu' llaeklierries. Honey 1 luu-t. 

 Willuw-leaf and Sliin-le Oaks. I'riekly A-li, 

 ete. It dill'ers materially from our northern, 

 iln-.s in the size of its small leaves, and a |ieru 

 liar feature is the wide winp;]i!<c growths of 

 cork which develop on o])]iosite sides of some 

 of its br.uielilets. particularly the lowermost 

 and those near the tnuik of the tree. It is 

 from this feature that it takes both its com- 

 mon and technical names. 



Its wood is heav'j", a cubic foot when abso 



lately dry weighing 46.68 lbs., hard and ditfi- 



cult to split, though it is not considered as 



strong as that of the northern Elnis.i 



Lrnrrft ovate-ohlons. from abruptly wedgp-sliaped 

 to subcordate at base and somewhat inequilateral, 

 acute or acuminate, doubly serrate, at maturity 

 firm, smootli, dark green above, pale pubescent be 

 neatl). Floirrrs appearing in early spring before 

 the leaves, in short few-tiowei-ed fascicles : calyx 

 glabrous with ;"> obovate lobes. Fruit ripening 

 usually before the unfolding of the leaves, samara 

 from V-i-Vn in. in length, long-stipitate, wbite- 

 hair.v especially on tbe thickened margin ; wings 

 narrow and with protruded points incurved at 

 apex. 



I. A. W., XII, 289. 



