Glass XXI. Order VIII. 



gles, the kernel tolerably good, the green shell rather thick, 

 opening two thirds of its length in autumn, when the fruit is 

 ripe. 



JUGLANS GLABRA. Mllhl. Pig Hilt. 'Hog nut. 



Leafets seven, ovate, acuminate, serrate, gla- 

 brous on both sides, with resinous dots underneath, 

 the odd one sessile ; fruit and nut oblong or obcor- 

 date. Ex Willd, sub hac et obcordata. 



Syn, JUGLANS PORCINA. Mich.f. 



This species of walnut has its young twigs in winter, ac- 

 cording to the observation of Michaux, of a brown colour, and 

 smaller by half than those of the white walnut and shagbark. 

 The buds are also small. The leaves arc pinnate, with seven, 

 sometimes five, nearly sessile, serrate, acuminate Icafets, smooth 

 on both sides, not hairy. Aments in threes, long, and pedulous. 

 Nut small, thick shelled, hard, smooth ; the outer, green shell 

 thin, frequently pear shaped or tapering at base, its quarters sep- 

 arating half way down when the fruit is ripe. 



JUGLANS SQUAMOSA. Michf. Shdlbark. Shagbark. 



Leafets five, on long petioles, ovate-acuminate, 

 serrate, villous underneath, the odd one sessile ; 

 aments of barren flowers compound, glabrous, fili- 

 form ; fruit globular, depressed ; nut compressed, 

 Mich.f. abr, 



Syn. JUGLANS COMPRESSA. Gcsrt. Willd. 



The bark of this tree separates into long, flat scales or 

 plates, with loose, detached ends, giving its trunk a rugged ap 

 pearance at a distance. Michaux observes that the buds are 

 distinguished by the shortness of the two outer scales, which 

 extend but half their length. The leaves are pinnate ; leafets 

 five or seven, large, oblong, acuminate, pubescent and soft un? 



