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aqueduct were several small species of Sempervivum, abundance of 
the golden-flowered ——_- millefolium, Arabis albida, maiden- 
hair fern and a Myposotis. 
Among the commonest shrubs and small trees are the Faya 
(Myrica Faya), the small-leaved holly (Ilex canariensis) and the 
tree-heath. There are three kinds of laurels, the most frequent being 
the Vinatigo (Phoebe indica). Among the less common trees are 
Visnea mocanera, Catha cassinoides and Notelaea excelsa. 
We pouwernted: the ravine to a short distance beyond a hill named 
Lomo Corto, 2200 ft., and had a fine view of the cliffs known as 
La Subaquera. 
On June 4th we started at 5 a.m. for the Pico del Cedro, 
7300 ft. Most of the ascent was done ou mu ule-back, but it was 
necessary to walk down the greater part o A great 
extent, of low wood was traversed which reached its fullest develop- 
ment between 3000 and 4000 ft., in the cloud belt. The wood 
was composed mainly of Myrica Faya, Erica arborea and Ilex 
canariensis, with undergrowth of white-flowered Cistus and bracken. 
The lex apparently did not occur above 4000 ft., but the Myrica 
was abundant up to 4400 ft., and odd specimens Were seen up to 
5400 ft. At 8 o'clock we reached the Llano de las Vacas, and had 
a fine view of the Peak of Tenerife and the wall of cliffs 
whieh encircles it above a sea of clouds. About 4700 ft. the 
vegetation consisted chiefly of pines, tree-heaths and bracken. The 
upper ib tide clothed with pine woods practically destitute of 
ground vegeta 
Lunch was aes at the Pozos de la Nieve, 6400 ft., small pits 
in which snow is stored for summer use. The mules were left here, 
and the rest of the ascent was done on foot. The last pines occur 
about 200 ft. below the summit. Above them the chief feature of 
the vegetation is the Codeso ety en viscosus), a large 
papilionaceous shrub with bright yellow flow 
The Pico del Cedro takes its name from an “old cedar (Juniperus 
Cedrus), which formerly grew among the rocks at the summi 
This is now dead, but part of the trunk still remains. About 200 ft. 
below, on the inner slope of the crater, there is a healthy and well- 
grown example of the same species. It took a quarter-of-an-hour 
to climb down to it, as much of the surface is composed of dangerous 
screes, some of which end in small cliffs. 
Magnificent views of the crater (Gran Caldera) were obtained. 
The opposite rim is about four miles away and the bottom is from 
5000 to 6000 ft. below. The interior of the crater has been carved 
by water into an intricate series of steep ravines and bold bluffs, 
clad with forests of Pinus canariensis. 
As some difficulty had been experienced in reaching plants on 
the cliffs, we had a large hook-knife made and mounted on the end 
of a long pole which proved of considerable service. 
On the afternoon of June 6th we examined the vegetation of the 
sea-cliffs to the south of the town. The beach was composed 
black volcanic sand in which nothing grew. At the base of the 
cliff, among loose boulders and stones which had fallen from 
it, were a Pellitory (Parietaria), Chrysanthemum frutescens, a 
