116 Botanical Notices from Spain. 
wholly covered with copses of various species of oak (especially Qu. 
Ilex, L. and Qu. Toza, Bosc.), Berberis vulgaris, var. australis, Cra- 
tegus granatensis, Boiss., Cotoneaster granatensis, Boiss., &e. Rye 
and barley are cultivated high up im the alpine region, whilst in the 
valley and on the southern slope much wheat, maize, Phaseolus com- 
munis and Cicer arietinum, are grown. 
In the very first excursion which I made into a side valley of the 
Dehesa, I found the two celebrated trees discovered by Boissier, 
Lonicera arborea and Adenocarpus decorticans, both in fruit. L. ar- 
borea has a very shrubby growth; but I have observed single trees, 
from twenty to thirty feet high, which were then mostly crowned 
by arounded top of thick foliage. This rare tree, which according to 
Webb is also found in Asia Minor, has a fissured grayish-brown and 
almost leathery bark, and leaves of a dark green on the upper side 
and somewhat shining, and underneath of a sea-green colour. I have 
not observed any flowers; the berries are oval, and when ripe black. 
This Lonicera is somewhat frequent, both in the valleys of the De- 
hesa and in the ravines of the south side of the valley, and ascends 
to 7000 feet,—nearly to the limit of the region of trees. ‘The Adeno- 
carpus decorticans is much more frequent, especially in single spots, 
but it does not grow at a height exceeding 5500 feet. The lowest 
point at which I have seen it is in the valley of the Jenil, below 
Guejar, at a height of about 2500 feet. In that valley, where I first 
found it, I :met with only small trees, all growing on the north side, 
on an arid limestone soil; but it is much more frequent in the copse 
of Pinus sylvestris, which bears the name ‘ La Cartejuela,’ and covers 
the saddle between the Cerro Tesoro and Trevenque, as well as on 
the northern slope of the valley, through which the river Maydena 
flows, where it forms the arboraceous vegetation together with the 
Quercus Toza. ‘This tree, which from its narrow and small leaves 
appears at a distance to be a Conifer, and has quite the habitus of 
shrubs of the Juniperus communis, attains a height of twelve to twenty 
feet, and a thickness of half a foot. The yellowish-white wood is 
very tough, and its yellowish-brown bark separates even from the 
youngest branches, and hangs down from the whole stem in long 
riband-like bands, whilst the ground all around is covered with pieces 
of bark shed from the tree. Beside these two trees, which are pecu- 
liar to the Sierra, the following also are found:—Sorbus Aria, L., 
which ascends from the rocks at the Monachil to the limit of the 
region of trees, accompanied by the Cotoneaster granatensis, Boissier, 
which still decorates the highest northern limestone rocks of the 
Dornajo and Trevenque, and is especially frequent in the wide valley 
between the Cerro Tesoro and 'Trevenque; Acer opulifolium, Vill. 
(A. granatense, Boissier, El. 39.), on the rocks near the Monachil, 
frequently in fruit ; Pinus sylvestris, L., which forms the above-men- 
tioned Cartejuela; Salix Caprea, L., only a few specimens in the 
upper part of the valley; S. alba, around the Cortijo, more frequent 
in the valley of the Jenil; S. purpurea, ditto; and Tacus baccata, L., 
on the upper Monachil, rare. The southern declivity lying opposite 
to the Dehesa, as far as the limestone formation and the mountain 
