GG 



leaflots unsyinnictiifal at the Ixise, sessile, those of the lowest pair 

 7-0 cm. loiio-, ami from 2.5-3 cm. wide. Sargent' says "this varietj' 

 occurs in Indiana," basinij his authorit}' upon my specimens of which 

 he has du]>licates. Heimlich- reports this variety from AVhite County, 

 and at the same lime he reported the variety from Daviess, Martin and 

 Wells Counties, leased upon specimens collected l>y the author and 

 determined by Sargent. I have carefully studied the specimens from 

 Daviess, Mai tin and Wells Counties, and they do not agree with 

 Sargent's description of the variety. While most of the leaves of the 

 specimens in question agree with the description, some do not, which 

 excludes it from the variet}-. 



31). Carya ovala variety Niittallii Sargent. Trees and Slirul)s 

 2:207:1913. This variety is described as having "nut rounded, 

 obcordate or rarely pointed at apex, rounded or abruptly pointed 

 at the liase, much coin)ircssed, prominentl.y angled, aljout 1.5 

 cm. long and 1-1.2 cm. thick; the involucre 4-10 mm. thick, 

 splits freely to the base. Except in size of the fruit there appears 

 to be no character by which the variety can be distinguished from 

 the common Shagbark." Heimlich' reported this variety from Dekalb 

 County, based upon si^ecimens collected by the author and determined 

 l)y Sargent. The nuts of the specimens from Dekalb County arc 2 cm. 

 long. The author has specimens from Wells County that agree with 

 the description. 



4. Carya laciniosa (Michaux filius) Loudon. Big Shellbark Hic- 

 kory. Plate 25. Large tall trees with trunks like those of the 

 shellbark hickory; bark of young trees tight, beginning to scale when the 

 trees reach a diameter of 1-2 dm., on older trees separating and scaling 

 off into long thin narrow strips; twigs at the end of the season stout, 

 4-7 mm. thick iieai- the tip, the twigs of the season hairy at first, becom- 

 ing glaljrous or nearly so by the end of autumn, yellowish or late in 

 autumn a rusty brown, frequently retaining the leaf-stalks of the leaves 

 of the previous season until spring which is jDeculiar to this species; 

 terminal buds large, ovoid to ovoid-oblong, 10-25 mm. long; ordinary 

 leaves 3-5 dm. long; leaflets 5-9, prevailing number 7, ovate to oblong- 

 lanceolate or obovate, the largest 1-2 dm. long, velvety Ijeneath when 

 they unfold and remaining haii-y l)eneath until maturity, rarely nearly 

 glabrous; fruit (n'ate, subglobose, oblong or obovate, 3.5-7 cm. long; 

 diy husk 3.5-11 mm. thick; nut variable, geneially much compressed, 

 up to 5.5 cm. long, usually circular in outline, but varjdng from ovate 

 to obovate and oblong, usually each side has 2 or 3 ridges which extend 



iBot. <:az. Vol, r,iV2:ii;:191S. 



■•Proc. Inn. Acad. Sfi. 19) 7 :4:i5 :inis. 



iPror. Inil, Acad. Sci. 1 ni 7 :4:<.5 : Utl.S, 



