182 
others. Epiderm thin. 5 to 8 
inches. 
4< Sp. T. or G. albida Raf. 
Mass rounded whitish, inside 
white solid without chinks, 
outside with few chinks, and 
some short wrinkles. In W. 
Pensylv. Ohio & Kentucky, 
deemed a truffle, good to eat. 
Perhaps this is the Tuber of 
Bose, but mine had no veins 
inside, with small gem mules 
outside, small size 1 to 3 in- 
ches. 
137. Pleuradena Coccinea. 
N. G. of Mexican Shrub, 
from Bartram’s Garden. 
The Botanical Garden of 
Bartram received some years 
ago from Mr. Poinsett our am- 
bassador in Mexico, a fine new 
green-house shrub, akin to Eu- 
phorbia, with splendid scarlet 
blossoms, or rather bracts. It 
has since been spread in our 
gardens near Philadelphia, 
and is known in some as the 
Euphorbia Pomseti; but ap- 
pears to me to form a peculiar 
genus or S. G. at least by the 
singular lateral mellifluous 
gland of the Perianthe. It is a 
Ine showy plant, well deserv- 
ing cultivation; it gives out a 
white milk like the rest, but 
the gland exudes a yellow 
sweet juice. 
G. Pleuradena Raf. Peri- 
anthe colored thick sub 8 lobe, 
on one side is a very large el- 
liptical gland, perforate and 
mellifluous. Phoranthe wooly, 
stamens incluse subulate, an- 
thers flat bilocular. Gynophore 
elongate pendulous, 3 bifid 
styles, capsule smooth trico- 
cous — Habit Shrubby, leaves 
scattered petiolate, umbel de- 
pressed corymbose, surrounded 
by many large colored bracts. 
Sp. PL coccinea . Raf. Iner- 
me, leaves ovate subangular 
acute remote, umbel irregular, 
bracts scarlet lanceolate acute. 
Flowers subsessile yellow 
edged with red, gland yellow, 
blossoms very early in Spring. 
If yet deemed an Euphorbia 
it may be called E. coccinea or 
E. poinseti Raf. S. G. Pleura - 
dena. 
138. Orospodias Corymbosa 
or Wild Cherry, of Ore- 
gon Mountains. 
At page 78 of this Journal this 
New Cherry tree was described 
and called Prunus rotundifolia . 
Upon a second examination of 
two trees of it in Washington 
square when in full bloom at the 
end of April, I have ascertained 
that it ought to form a peculiar 
G. or S. G. between Padus fy 
Cerasus, which I therefore call 
Orospodias meaning Mountain 
Cherry. It differs from both by 
flowers in a corymb or short co- 
rymbose raceme rather than fas- 
cicle, with bracts at the base. 
The Calix is campanulate 5 fid, 
with acute reflex segments. Pe- 
tals unequal oblong obtuse. If 
this tree is to be retained with 
Prunus it might be called Pr. 
corymbosa , this name being bet- 
ter than Pr. rotundifolia , as all 
the leaves are not round, but some 
oval, while the flowers are always 
corymbose, larger than in Padus, 
but smaller than in Cerasus, It 
differs totally from Cerasus by 
not having the Calix urceolate, 
a striking character of Cerasus , 
omitted by all the authors! altho’ 
it is the best distinction between 
it and Prunus . 
