ON THE JULIANIACEZ, A NEW NATURAL ORDER 381 
pedicel is cone straight, and equilateral, from 6-7 cm. long, 
and about 1 cm. wide. 
The nuts par Juliania are almost see ase biconvex, hairy on 
the outside, and have a very hard endocarp. The solitary ex- 
albuminous seed is circular or oblong, 6-10 mm. long, compressed, 
with a smooth, thin testa. The embryo is horizontal, with thin, 
plano-convex, more Ds — oblique, obscurely lobed cotyledons, 
which are epigszous i rmination, and a long ascending radicle 
applied to the edges af the aac: 
II.— History. 
It is surprising Yess a genne of plants so striking in aspect, so 
distinct in the shape of its fruit, and so o widely spre ead as Juliania 
is in Mexico, suonkd have cals escaped the observation of all the 
earlier European travellers in country. 
C.J.W.8 .D., who accompanied Ferdinand Deork-n 
a botanical expedition to Mexico in 1828, was apparently the first 
to send dried specimens to Europe of one ‘of the Aig cies of Juliania, 
t it was not until 1843 that his friend, he 
Schlechtendal, published an account of the ‘ans of siesta 38 in 
quest mes 
name of Hypopterygium fence oreien Juliania) 
adsringen, he very fully described the material he had an o 
tunity of examining, but he had neither fousle flowers nor mature 
seeds, and he was doubtful whether the fruit was the result of one 
type of a new Natural Order. Since Schlechtendal’s time, until I 
took up the study of the genus five years ago, nobody seems to 
have had sufficient material to supplement his description. 
. Gray ora also from very incomplete material, 
what he considered a second species of the same genus, collected 
in Peru. An exam saieaktiti of fuller, though by no means complete, 
material has led me to separate it generically under the name of 
Orthopterygium. 
In September, 1900, the late Mr. Mare Micheli presented Kew 
with a small set of E. Langlassé’s Mexican plants. Among them 
_ @ specimen in fruit, shih, after much research, was identified 
with Schlechtendal’s Juliania adstringens; but the most careful and 
tedious examination carried me no further than Schlechtendal had 
before. 
Washington, from which I make the following ex 
Journat or Botany.—Vou. 44. [Novemper, 1906.) 2F 
