MISCELLANEOUS SPECIES. 61 
of the calyx as it appears when fully grown and ready to fall ; 
but there is something to be said concerning that caly ptriform 
organ in its early and middle stages of development which is 
very interesting as well as highly instructive upon the matter 
of the affinity between Eschscholtzia and the Mexican plant, 
Hunnemannia. 
The genus last named has been distinguished from the first 
by the two characters of a two-valved, instead of a calyptri- 
form, calyx and by ovate obtuse, instead of filiform stigmata. 
In our new Eschscholtzia the very young flower buds exhibit 
strongly the appearance of two distinct valves to the calyx, 
for they are notehed at the top and have a manifest channel 
running down to the torus from each side of the terminal 
notch, the whole young bud thus closely resembling that of a 
Papaver. In fuller growth, and especially when the calyptra 
is within a day or two of falling away, it appears somewhat 
quadrangular; for while the two primary sutural lines have 
become less distinet than they were, two others have become 
apparent, namely, one up and down the middle of each of 
what we may call the false valves ; and, although in all other 
species of the genus whose flowering I have observed the 
yielding calyptra is ruptured on one side only, in this one a 
fissure takes place at the base of at least two, and sometimes 
three or even all four of the lines which I have described. 
Furthermore : in the most robust one of all my growing 
plants the buds from their earliest appearing are actually 
open at the top, and thus the yellow of the petals is exhibited 
for a week before their full unfolding. In this individual the 
sundered tips of the calyx develop a few leaf-segments ; but 
still, even here, the organ is cast off finally by means of 
fissures near its base. 
I suppose that not even this most MA new Eschscholt- 
zia will: quite invalidate the genus Hwnnemannia, which must 
be kept up in deference to its broad flat stigmata ; for it is an 
order of plants in which any peculiarity of this organ has 
