46 NEW OR RARE ORCHIDEJE. 
their peculiar study. Such is particularly the case with the 
present individual, which, though characterized by the pen or 
pencil of a Thouars, or a Lindley, and a Richard, yet presents 
some points of difference, enough to show, that, with the greatest 
care we can devote to the subject, something will escape 
our notice, or present itself in another light from that in 
which it has appeared to others. Du petit Thouars, in 
the plates above referred to, has given a very satisfactory ap- 
pearance of the plant of its natural size. But, in the dissec- 
tions, he has represented the clinandrium as furnished with 
two little sacks or receptacles, in which not only the caudi- 
cula, but the proper gland of the pollen-masses, are inserted. 
Professor Lindley thus defines his genus Cryptopus; ** La- 
bellum membranaceum, horizontale, liberum. Sepala hetero- 
morpha, lobata, unguiculata, explanata, basi distantia. Pol- 
linia 2, integra, filis et glandulis propriis in bursis totidem 
clinandrii occultis !” —Professor Richard describes the pollen- 
masses of our plant as ** Pollinia duo solida, globosa, basi sub- 
angustata et in membranulam bisrecurvatam, retinaculo ovali 
peltato, facie superiori pilis albis hyalinis brevibus tecta ‘insi- 
dentem." 
It must indeed be confessed, that the real structure of this 
| part of the inflorescence is very difficult to be distinguished, 
and equally difficult to be described. I have examined nu- 
merous flowers (preserved in spirits) both before and after 
expansion, and I have endeavoured to represent faithfully 
what Ihave seen. In the state of the bud, I universally found 
the anther-cell to be closed by a membrane covering the two 
pollen-masses, as represented at f. 2. In a more advanced 
state of the flower, on raising the anther-case (as at f: 3.) 
the membrane within was found burst, and what I consider - | 
the large cup-shaped glands, with their curiously attenuated 
and pubescent base, were fixed by means of a thin plate (f. 
6.) to the sinuses of the teeth in the clanandrium; yet so 
slight was the attachment of the pollen-masses to these glands, 
that they were, in almost every instance, carried away by the 
forcible removal of the anther-case. 
