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IN THE CINCHONA FORESTS 283
I have no doubt, from their resinous juice, belong to the same
order.
MeUacea, i. A species of Trichilia. called Muruvillo, whose
bark is held as a febrifuge, barely enters the Bark region at San
Antonio, but does not extend up to it at Limon. A tallish tree,
with pinnate leaves and very large serrated leaflets, which was
putting forth large terminal panicles when I left the woods,
to this order.
probably belongs
Zygophyllea, i. A fine tree of 40 feet, with large opposite
pinnate leaves ;
it is closely allied to Guaiacum, though scarcely
referable to that genus.
Podostemacea. The withered remains of at least three species
were observed on granite rocks in the river San Antonio, and
they are the first of the family I have seen in the Andes.
Oxalidacece. At San Antonio grow two species of Oxalis,
both of which I have previously gathered, the one on the eastern
side of the Andes near Bahos, and the other at Pallatanga on
the western side.
Caryophyllacea. A solitary species of each of the genera
Stellaria and Drymaria grows very sparingly. In ascending
the eastern side of the Andes, I first came on a Stellaria at
between 2000 and 3000 feet. This order, frequent enough in
the upper regions of the Andes, seems to exist in the plains at
their base only in the genera Polycarprea, Drymaria, and Mollugo,
all three very scarce on the Atlantic side, but the last-named very
abundant on the Pacific side.
Portulacea. A Portulaca grows in sandy places inundated by
the Rio San Antonio.
Polygonetz. A Triplaris, apparently identical with that observe d
at Puma-cocha, and possibly distinct from T. Sim'/ninn'tinis,
extends a little way into the territory of the Red Bark, and in
descending from thence becomes more abundant all the wa\
down to the plain, where it is called by the Guayaiiuilians Arl>l
de frios or Ague tree. Its presence, indeed, is a pretty sure
indication of a humid site.
Amarantacea, i. A woody twiner. There are U -sides two or
three weedy plants of this order, probably species of Telantlu T.I.
one of them being the
ubiquitous Chenopodium aml>>-osiiilcs, which grows with almost
equal luxuriance in the elevated'central valley of the Ande- and
in the plains of the Amazon and Guayaquil.
/'ipi'mcete, 5. Species of this order are very numerous. I sa\v
Chenopodea. Two common weeds ;
perhaps as many as twenty, belonging chiefly to the genera
Artanthe and Peperomia.
A very line pepper, resembling Artnntlic
cximia, Miq., but a still handsomer plant, grows towards the lowei
limit of the Bark region. The stem is 20 ilet high, slender and
perfectly straight, and beset with short, distant, nearly hori/ontal