[ 429 J 
XXV. On the Heliamphora nutans, a SPF gs from British Guiana. 
By Grorce BexraXu, Esq., F. L. S. 
Read February 4, 1840. 
AMONGST a number of new and handsome plants collected by Mr. Schom- 
burgk on the mountain of Roraima, on the borders of British Guiana, one of 
the most curious is a species of Pitcher-plant, which he found growing in a 
marshy savannah, at an elevation of about six thousand feet above the level 
of the sea. As this plant is a new form in a very distinct natural Order, the 
Sarraceniaceæ, hitherto consisting of but one genus, and only six species, I 
have thought that the following short account of it might not be uninterest- 
ing to the Linnean Society. 
Like the true Sarracenia, this is an herbaceous plant, with fibrous roots and 
radical leaves, of which the petiole forms a long hollow tube or pitcher, open 
at the top, and the.lamina a small concave lid, which does not, however, as in 
_ Nepenthes, close over the pitcher. The parallel veins of the pitcher, with 
transverse reticulations, and the thick texture and reticulate venation of the 
lid, are the same in Heliamphora as in Sarracenia. 
A curious disparity in the texture of the reflexed hairs of the inner surface 
of the pitcher has been pointed out to me by Dr. Lindiey, and I observe pre- 
cisely the same structure in Sarracenia purpurea. "The hairs which densely 
close the mouth of the pitcher are thick, conical, and striated, without any of 
the ordinary appearances of secreting hairs, although this part of the leaf is 
said, in Sarracenia at least, to be generally covered with a saccharine exuda- 
tion. At the bottom of the pitcher, and below the smooth shining part (the 
same in Heliamphora as in Sarracenia), the scattered hairs, smaller than those 
of the throat, but still reflexed, have all the appearance of ordinary secreting 
hairs. "They arise from a small tubercle, and appear to be composed of a single 
