260 List of the Plants of Chile. 
_ Orthotrichum affine, Schrad., O. anomalum, Hedw., and O. dia- 
pin, Schrad. Small mosses which grow upon stones and. ‘the 
barks of trees. They are not interesting except in a botanical: 
of view. They are all confounded under the name of pastito. . 
- Oseillatoria nigra. Vauch. and O. muralis, Ag. Syn. Boedoalis 
very frequent in winter. The first on the surface of stagnant waters, 
and the second on walls which are damp and in the shade. There 
are other species which grow in similar situations, but whose charac= 
ters, being for the most part microscopic, require time, instruments, 
cs which are not always within reach of the traveller to de= 
termine them. They are*only interesting in a scientific point of views. 
_ Ovalis. L. This genus offers many species proper to this coun= 
try ; 3 some are not well known, and others are new. The-name 
nnagrilo is generally applied to those with yellow flowers, and vin- 
ull colorado to the species with a reddish flower. ‘The most re-. 
= ehuch ; is + called flor de las perdices. It begins to appear in April, 
and continues flowering till the close of May. It covers: the-fields, 
and lawns of the plain. I am told that the Indians call this plant 
rimu, and make use of its tincture. The word rimu, according to 
Father Andres Hebres, signifies partridge. Keeping in sight what 
we have just said, and what Molina says, there is room for-suppos~ 
ing that the Sassia perdicaria of this author, is the plant mentioneds 
ave the leaves, the disposition of which he may not have had occa~ 
on to observe, and particularly examining the plant from imperfect 
pecimens, which most probably has been the case. We have called 
_O. perdicaria, not being able to refer it to any known species 
bout the same time, and in the spring, another. Oxalis is founds. 
with 1 purple and sometimes violet flowers, in the sandy. plains, near 
rivers, and on the highlands. This, with the same exception, Te- 
sembles the Sassia tenctoria, Molina. I therefore think that this. 
genus should be expunged from the books, and J invite. all. botanists 
who possess specimens of these two plants, to islet henna 
fol examination, in order to decide the meets I ha 
st O. arenaria. It closely resembles the O. “Letraphyllty, Cate 
an are Sen by another species which is of the. size of the 
O. corr _ The O. rosea, Jacq. is met with in abundance 
in shady oid, ba on the highland and on the plain. The 
megalorhiza, J; acq. grows - bales adie lt of rock 
It does not differ from the O. tuberosa, Molina, - 
ir Oe w @ 
