$30 HALL’S EXCURSIONS. 
many of the towns and country seats, where it is employed 
like the Lombardy Poplar in Europe, which it resembles 
greatly, to form walks or Alamedas; but it must be owned 
it looks everywhere like a foreigner. 
With respect to the Shrubs and smaller plants of the 
table land, there is a marked difference betwixt the two 
basins already mentioned. ‘Throughout the Northern, the 
hedges are composed of a species of Euphorbia, abounding 
in milky juice, of Barnadesia spinosa, Duranta triacantha, 
Gesneria ulmifolia, Salvia rubescens, two shrubs called by the 
natives Souko, several species of Solanum, a species of 
Monnina, and several syngenesious shrubs, interspersed with 
T'acsonia tripartita, Alstremeria Caldasii, Passiflora—? (11. 
No. 6.) Datura sanguinea, Thibaudia ? Rubus? Andromachia 
igniaria, the bark of which is used for tinder, and a species 
of Melastoma called by the natives Co/ka, and used in conjunc- 
tion with the Hypericum laricifolium, to produce a yellow dye; 
to which may be added, in more sheltered situations, two 
species of Mimosa, the only ones found at the elevation of 
above 8,000 feet. Among smaller plants, several varieties 
of Calceolaria lavandulefolia, floribunda, amplexicaulis, perfo- 
liata? gracilis, integrifolia ? 2 species of (Enothera, a species 
of Cleome, and numerous families of Syngenesia, constituting 
the populace called weeds, contribute to form the epithet 
siempre verde, evergreen, bestowed by the Spaniards on Quito. 
In the ravines are found several elegant species of Lulies, 
though bulbous-rooted plants are by no means abundant 
round Quito, and the vallies and banks are clothed with 
Sedum Quitense, and a variety of Ferns and Mosses, among 
which grows a small orchideous plant with white flowers. 
The Southern basin, with the exception of the narrow vale 
of Banos, presents features strikingly different. After passing 
the Paramo of Tiopullo, we enter a country, the soil of 
which attests the volcanic eruptions of Cotopaxi, Tungara- 
gua, and Carguirazo; plains of crumbled pumice-stone and 
barren sand extend from Callo to Riobamba. The hedges 
are formed almost exclusively of Agaves, the tall flower- 
