IOWA ACADEMY OF SCIENCES. 167 



Nagel and Haupt, Proc. Davenport Acad, of Nat. Sciences, 

 Vol. 1, p. 163; Shimek, Bui. Lab. Nat. Hist., S. U. I., Vol. 3, 

 p. 209; Pammel, Proc. Iowa Acad, of Sciences, Vol. 1, pt. 2, 

 1890-1S91, p. 91; Fitzpatrick, Proc. Iowa Acad, of Sciences, 

 Vol. 5, p. 167; Iowa Geol. Sur., Vol. 8, p. 313; Macbride, 

 Iowa, Geol. Sur., Vol. 7, p. 107; Britton and Brown, Ills. 

 Flora, Vol. 1, p. 486; Barnes, Reppert, and Miller. Proc. 

 Davenport Acad, of Nat. Sciences, Vol. 8, p. 255; Reppert, 

 Iowa Geol. Sur., Vol. 9, p. 386. Trelease, Seventh Rep. 

 Mo. Bot. Gar., p. 40. 



Hicoria alba (L.) Britton. White-heart Hickory. Mocker- 

 nut. Tree growing about 80 feet high, bark not shaggy 

 but rough and close; leaves and twigs persistently tomen- 

 tose-pubescent, fragrant when crushed; leaflets 7-9, oblong- 

 lanceolate or the upper oblanceolate or obovate, acuminate; 

 staminateamentsin 3's,peduncled; middle lobe of thestami- 

 nate calyx linear, much exceeding the lateral lobes; fruit 

 nearly or quite globose; husk thick; nut grayish white, 

 angled, pointed above, somewhat compressed, thick-shelled, 

 4-celled below; seeds edible, sweet. Juglans alba L. Sp. 

 PI. 997, 1753; Juglans tomentosa Lam. Encycl. 4: 504, 1797; 

 Can/a totnentosa^utt.Gen. 2: 221, 1818; Hicoria albaBvittou, 

 Bull. Torr. Bot. Club, 15: 283, 1888. 



The wood of this species has much the same character- 

 istics and the same uses as the two preceding species. The 

 species has an extensive range, being found from Massa- 

 chusetts and Ontario to Nebraska, south to Florida and 

 Texas. Its range in Iowa is quite limited and confined to 

 the eastern side. Our specimens are from Muscatine 

 county, where we found the species occupying rich up- 

 lands, and it appeared to be the common species. The 

 close, rough bark and tomentose leaves and twigs give the 

 species an aspect quite distinct from any other hickory. 

 All the trees which we noticed were small and seemed to 

 be of second growth. We understand that the species 

 occurs in Scott county, and Prof. Pammel has reported it 

 from Johnson county. 



Arthur, Contr. to the Flora of Iowa, p. 29; Pammel, Proc. 

 Iowa Acad, of Sciences, Vol. 1, pt. 2, 1890-1891, p. 91; 



