— 204 — 
(1897, p. 206). Transcaspian specimens correspond with his 
description, but I have not found stone-cells in the basal 
part of the leaf, nor the layer of short subepidermal cells 
recorded by WARMING. In the leaf, as in the bark of young 
stem-internodes (fig. 44), there are three (or four) layers of 
small palisade cells which inwards are abruptly replaced by 
larger ones containing only a few chlorophyll grains. These 
adjoin a system of veins which branch out in great numbers 
through a certain zone of the bark or the mesophyll, and 
only within this zone is there a perfectly translucent aqueous 
tissue; this last is divided into two parts, an outer zone 
of large cells, and an inner zone of smaller cells. 
The epidermis is thick and papillose, and the stomata 
are sunk. 
Sueda microphylla Pall. 
This species is known to me only from descriptions and 
herbarium material. Perhaps it should be considered as a 
chamaephyte as the stem is said to be decumbent. The 
stem may attain a thickness of 4 centimetres. The branches 
are long and widely spread out. The year-shoots are branched 
both in the inflorescence and in the vegetative portion, some- 
times twice branched. 
The leaves are typical Sucda-leaves, rather short. The 
plant flowers in July and the fruit is ripe in October. 
Sueda physophora Pall. 
This plant is said to be a shrub about one metre high, 
but I have not seen it. 
Lycium ruthenicum Murr. 
A shrub from 10 to about 60 centimetres high, spiny 
and with outspread branches. It is a salt-bush not generally 
found on sand. 
Under specially favourable circumstances the year-shoots 
may attain a length of more than 60 centimetres, but as a 
