12 -POLYANDRIA, MONOGYNIA. 
2. variolaris. 3. flava, Called Trumpets from the eton- 
gation and tubiform appearance of the leaves. 4. rudra. 
WS. psittacina? Michaux 1. p. 311. 
A North American genus, ‘partly maritime, not extend- 
‘ing beyénd the Alleghany mountains. The opportunity 
of examining the seeds of this genus have escaped me for 
the present, but there can scarcely exist a doubt of the di- 
_ ect association of Sarracenia with any order which can 
_ include the genus Wuphar. The singular deformity in the 
leaves ought not to operate in any material respect 
‘against its admission amongst genera of so different an ex- 
‘ternal aspect. In Nepenthes the ascidia or ‘tubes are 
‘merely an appendage to the true leaves; and in the Cepha- 
lotus of New Holland we have an instance of leaves and 
ascidia produced separately, both plants of very distinct 
-erders from the present, it is probable that other genera 
will also be discovered at some period in the vast and 
unexplored regions of the world, furnished with these sin- 
gular appendages. 
$68. NUPHAR. Smith. (Yellow Pond-Lily.) 
Calix 5 or 6-leaved. Petals many, minute, 
inserted with the stamina upon the receptacle, 
externally nectariferous. Stigma orbicular, ra- 
diated, sessile. Capsule carnose, many-celled, 
many -seeded, superior. 
Herbaceous aquatic plants; with alternate floating and 
sometimes emerging leaves, more or Jess semiorbicular- 
ly cordate, at first involute towards the centre of the up- 
per surface which resists the admission of water; petioles 
ture, surrounded more than half-way by a dilated and finely re- 
ticulatéd lobe, more or less connivent over the surface of the 
orifice; this operculoid Idhe is covered with rigid hairs bent 
downwards like the teeth of nid the entrance of the orifice 
for a few lines is smooth appears resplendent like vel- 
vet, but is not stele the interior of the tube for about half 
its length is not only smooth but polished, the lower half then 
presents the same retrorse rigid hairs as the operculum but 
somewhat longer;—the insect descending thus far without 
meéting with arty opposition, is now arrested on its return, and 
‘becomes entangled by the feet; if it should succeed to extri- 
cate itself in an exhausted state, it is again precipitated inte 
the former abyss inevitably to perish! 
