records to Carya oralis. The most northern station based upon an exist- 

 ing specimen is the north side of the Mississinewa Eiver east of Eaton 

 in Delaware County. It is a frecjuent, common to very common tree 

 on tlie hills in the southern part of the State. It has its mass distribu- 

 tion in the unglaciated part of the State, although it is locally a frequent 

 to a common tree of the hills of the other southern counties. It ap- 

 pears that this species has the abilitj' to invade areas after the vir- 

 gin forest is cut, and it is not an uncommon sight to see this species 

 in almost pure stands on the hills of cut-over lands. 



Remarks. — This species is often called pignut. Sargent wisely 

 suggests that this name l)e used exclusively for Carya cordiforniis. The 

 great aliundance of this species in Brown, Morgan and Monroe Counties 

 has l)eeu instiumental in liuilding up a large business in the manufacture 

 of hi(dvo)y chairs and furnituie. Frames of furniture are made from the 

 vei'v young tices, and backs and seats from the bark of old trees, wdiich 

 are cut, strip|K'd of their bark, and often left to rot. 



6a. Carya glabra variety niegacarpa Sargent'. This variety 

 was leported for IniHana by Heimlich.- His rejiort was based on a 

 specimen collected by the autlior in Franklin County. It was named 

 b>- Sargenl wh(( has a duplicate specimen. Sargent in his revision of 

 the liickoi'ies does not include Indiana in its I'ange. The size of the 

 fi'uit IS the chai-acler that mai'ks the variely and I do not believe this is 

 sufficient 1o warrant its sepai'ation. I have, ther(/fore, included all 

 Indiana foi'ms undei' the type. 



7. Carya oralis (AVangenheim) Saigent. Small-fruited Hick- 

 ory. Plate 28. Medium sized tall t]-(>os: bark usually tight on 

 the trunk foi- a distance up to f.5-3 m., then ):)ecoming more or less 

 scaly like tlie slieljljark hickory, on some trees the bark is very thick 

 and is quite scaly Ijut it does not tlake off in thin plates as the shell- 

 bark hickory: twigs purplish or reddish-brown, generally smooth by the 

 end of the seasfui, generally 3-4 mm. thick near the tip; terminal winter 

 buds ovoid, 7-10 mm. long, covered with yellow scales and more or less 

 pubescent; average size leaves 2-3 dm. long; leaflets 3-7, prevailing 

 number usually 7, sometimes 5, usually lanceolate, fre(|uently oval or 

 slightly obovate, the terminal 12-21 cm. long, at maturity usually 

 pubescent beneath in the axils of the veins, more rarely also the veins 

 coveretl with hairs; fruit varies greatly in size and shape, the most 

 common form is obovoid, more rarelj^ oval, or subglobose, 25-42 mm. 

 in length, granular and covered with yellow scales; husk usually 

 splitting to the base, although tardily on some, often quite aromatic, 

 diy husk 1.1-3 mm. thick; nut variable in size and shape, from elliptic 



iBot. Gaz. 66:244:1!I18. 



oProc. Ind. Acad. Sci. 1017;430:1918. 



