JUGLANDACEAE OF THE UNITED STATES. 41 
Nussbaumer hybrid, after Mr. J. J. Nussbauraer, of Okaw- 
ville. 111., who first brouirbt it -to the attoiition of Judge 
Samuel Miller, of Bliiffton. Mk Mr. Xu^^baumer writes 
me that the original tree, \vhi*'h .-taruls in the l)ottom be- 
tween Mascoutah and Fayel ti'vilh-, 111., in general appear- 
ance resembles larinio.'ia, though the bark is intfrmediate 
between that of the Peean and Mcx-k.-rnut . Professor 
Sargent states (Silva, vii. 158) that a -mall tree grown 
from this in New Jersey by Mr. Fuller, cannot be distin- 
guished from hrMiiosa of the same age; and I should 
hardly be able to distinguish an imperfect twig from a 
small tree, cultivated by Judge Miller, from laciniosa. 
The nut, however, is very peculiar, being more elongated 
than is usual in that species, and widened upwardly, less 
acutely angled as if the ridges had been sandpapered 
down,'' and so thin shelled that it can be crushed easily 
by pressing two together in the palm of the hand. A 
somewhat similar nut, originally from Indiana, was 
described by Mr. Fuller in the New York Weekly 
Tribune, Julv 9, 1892 (Sargent's Silva, 1. c.) as culti- 
vated by Mr.* R. M. Floyd, of Cedar Rapids, Iowa. And 
in the autumn of 1895, Dr. J. Schneek sent me ample 
fruit, twig and leaf specimens of a similar hickory from 
Posey County, Indiana. The nut of this last is almost 
identical with a specimen of the Nuss})aumer nut in the 
Engelraann herbarium, while its twigs closely re-emble 
those of laciniosa, and the loaves are decidedly of the 
Pecan type. I am led to the condu^-ion, tlu-rofore, that 
these several forms really represent liyl)rid- t)ctween //. 
Pecan and //. laciniosa. In size, <juality, and thinners of 
shell, thev appear to be the most valuable of American 
nuts— pi. 22, 23, f. 6-9. 
10. II. ovATA (Miller) Britton. Carya alba, Nuttail.— • 
The Shagbark or Shellbark. — A large tree; bark loosely 
iiaking in large scales, the base of old trees merely 
checked ; twigs slenderer, gray often tinged with red, only 
