36 The Botanical Gazette. [February, 
There is no deposition of intercellular matter in ce bias 
ment nor between the two integuments. The pa ee : 3 
c, is of moderate size. The cell cavity is nearer ye bee 
end than ordinary. Nodosity is not often present. The si 
line, 7, isnot so sharp or distinct as in many species. ee 
sub-palisade portion, d@, is made up of a layer of os ce Ae 
several small ones. The small cells are narrow. ew 7 
is of a chestnut brown color. The endospermal cove 
e, is rather delicate. The first layer of cells in the en 
rm, f, is made up of regular cells. 
co pie ec teas med oats 104M; outer ee 
outer layer of same, Ii; inner layer of same, 18; palisa 
layer, 524; sub-palisade, 23. 
MALVA SYLVESTRIS L.; fig. Il.—The surface of M. ‘ye 
tris is rough in appearance. The second layer, b, eo a 
outer integument, a, has been compressed into a thin lay 
and seems to have no definite arrangement. The outer lay 
a, has been elongated radially. In places these clone 
cells have divided forming a double layer of cells. There } 
no brown coloring matter in this integument nor is there 
between the integuments. The palisade cells, c, are i 
the walls thick. The cell-cavity occupies about one 
the length of the cells, the lower end reaching to the midd “ 
The nodosity is prominent. Below the cavity the cells a 
clear, almost transparent. The sub-palisade portion, 4, : 
usually made up of two layers, at some places only one, 0 fs 
large dark brown cells, 4 
Measurements: seed Coats, 1224; outer integument, ae 
outer layer of same, 22; inner layer of same, 5; palisade — 
layer, 70p; sub-palisade, 25, ie 
CALLIRRHOE TRIANGULATA Gray; fig. I1.—The inner : 
layer, 0, of the outer integument is developed into isodia @ 
metric cells. The outer layer, a, is drawn out tangentially ‘ 
until linear. The cells are colorless and are Closely contigu= — 
ous to the palisade layer. The palisade layer, c, is clear — 
throughout, with the borders of the cells sharply defined. . 
Cell-cavity is large and near the upper end of the cells; 10- : 
dosities prominent. The light line, Z, is wide and sharply de- — 
fined. The sub-palisade portion, d, is composed of two ay : 
of cells, the cells of the upper layer having very thick brownist — 
walls. 
