70 



T;ith(M- a rare tree in northeni Indiana, but liecomes more or less frequent- 

 in the western part of the State south of the Wabash River and more or 

 less frequent to common on the hills in all of the State south of Marion 

 County. It is most ainuida.nt in the unglaeiated area. 



Remarks. — This species is called mockernut by text liooks, and bull 

 hickory in the vicinity of New Albany. 



5a. Carya alba variety subcoriacea Sargent. Trees and Shrubs 

 '2:207:1913. Only one tree of this variety is known in Indiana and it is 

 located in Posey County on the bank of the cypress swamp about 13 

 miles southwest of Mi. \''ernou. Sjiecimens from this tree were sent to 

 Sargent and he referred them to this variety. ^ It differs from the 

 type in the larger size and shape of the fruit and nut. The dried fruit 

 is .5 cm. louR-, oblong. The nut is oblong, 4.4 cm. long, pointed at 

 l)otli ends, or some aiuts somewhat ovate in shape and more I'ounded 

 at the base, litth^ comjiressed and strongly angled; shell very thick, 

 o mm. at the thinnest place; kernel very small and sweet. 

 The nut easily distuiguishes it fi'om all forms of hickory. The author 

 has bought hicdvorj' nuts for ta.lile use for sevei'al years fi'om Posey 

 Comity and this nut is fre([uently found in the assortment which 

 shows that this variety is more or less ficciuent in that section. 



6. Carya f;labra (Millei-) Spach. l^L.vcK Hickoky. Plate 27. 

 \'ery tall medium sizedti'ces, uplo 7 dm. in <liameter; l^ark tight, usually 

 dark, fissures shallow on some and (luite deep on others; twigs i-eddish- 

 brown, glabrous, terminal buds small, ovoid, al)Out 7-12 mm. long; 

 oidinai}' leaves 2-3 dm. long; leaflets generally lanceolate, sometimes 

 ([uile wide, or widei- beyond (he middle, prevailing numl)er .5, the 

 lerminal usually 11-19 cm. long, somewhat ])ubescent on \nifolding, 

 mriie or less ])ul)cs<-en( below at maturity, usually only the midrib, 

 axils and lai'ger vehis with hairs; fruit generally smooth and obovoid, 

 rai'elj' gloljosc or oval, 22-40 mm. long; husk scjnietimes not opening, 

 moi'c often one or moi'c of the sutures open to less than ha,lf way, 

 1-2 mm. thi(dv; nut about 20-30 mm. long and ](i-2.') mm. 

 wide, rounded at the a|)ex, <4onga(cd and rounded at the base, angles 

 wanting oi- obscure; shell vei-y hard and thick, about 1 ..5 mm. thicdv 

 al (he thinnest point; kernel sweet and astringent; wood and uses same 

 as that of the shellbark hickory. 



Distribution. — Southei'n Ontario south to the Clulf States and west 

 to Texas and Iowa. This species is I'eported for all parts of the State. 

 However, the records for the northern counties were made when this 

 species was not separated from Carya ovoUk, and since the latter si^ecies 

 is f(uite fre(|uent in the northern counties it is best to i-efer the early 



iBol. Gaz. 06:237:1918. 



