38 The Botanical Gazette. [February, 
is not very prominent and quite near the end of the cells. 
The lower portion of the cells is colorless, almost trans- 
parent. The sub-palisade portion, d, is composed of two 
layers of cells. These cells are large, brown and elongated 
tangentially. : 
Measurements: seed coats, 120M; outer integument, 24); 
palisade layer, 70; sub-palisade layer, 26¢. 
ABUTILON AVICENNAE Gaertn. ; fig. VII.—The outer layer, 
a, of the first integument is transformed into a strongly refrac- 
tive layer. Thes econd layer is composed of radially elongated 
cells. The seed hairs arise from a single cell and are large 
and conspicuous. The hairs are spindle-shaped and _ thin 
walled; they occur mostly at the ends of the seed and are 
more or less pressed to it. There is little or no coloring mat- 
ter in this integument excepting in the base of the hair cells. 
The palisade cells, c, are narrow for their length. The cell 
cavity is not prominent and the nodosity is inconspicuous. 
The light line is narrow and occurs near the outer end of the 
palisade layer. The sub-palisade portion, d, is made up of 
two layers of light brown cells. They are symmetrical and 
elongated tangentially. 
Measurements: seed coats, 147M; outer integument, 13/5 
palisade layer, 96u; sub-palisade, 38 yu. 
MODIOLA MULTIFIDA Moench.; fig. VIII.—The first layer, 
a, of the first integument is developed into tangentially elong- 
ated cells. The second layer, 6, has been compressed into 
an irregular shape. This layer contains much yellowish co- 
loring matter. The palisade layer, c, is clear, almost trans- 
usually present. The light line, /, is indistinct. The sub- 
palisade portion, d, seems to be made up of two layers of cells. 
The cells of the different layers alternate. The outer layer 
asurements: seed Coats, 844; outer integument, 144; 
palisade layer, 32"; width of same, 4; sub-palisade, 38; dl- 
ameter of upper layer, 26m; diameter of lower layer, 14M. 
