Pammel — Anatomical Characters of Seeds of Leguminosae. 155 



due to the endosperm, which reaches its greatest develop- 

 ment on the sides at the two ends. 



Malpighian. Cells are 58-62 //in length. Cuticle is uni- 

 form in thickness, well-developed; cuticularized layer not 

 conspicuous, but on the addition of chlor-iodide of zinc it 

 colors a faint blue ; the light line occurs underneath the cuti- 

 cularized layer and colors blue on the addition of the same 

 reagent, as does the remainder of the cell-wall, though less 

 promptly. From this and other species it is evident that the 

 light line contains less foreign matter than the remainder of 

 the cell-wall. The cell-cavity is broad and irregular at the 

 lower end but gradually tapers upward. It contains protein 

 grains, pigment, and tannin. 



Osteosclerid. Cells are elongated, thick-walled; the cross 

 bars somewhat unequal; upper portion smaller; large inter- 

 cellular spaces between the cells. 



Nutrient. This layer is differentiated into two parts. 

 Walls are not greatly thickened, and color blue with chlor- 

 iodide of zinc. The lower part of the layer takes on a deeper 

 color than the upper. Contents and walls color brown with 

 the same reagent. 



Endosperm. Varies in thickness. Aleurone cells thick- 

 walled. The reserve cellulose cells are thick-walled, and be- 

 come mucilaginous on the addition of water. The walls color 

 blue with chlor-iodide of zinc. The primary cell-wallis thin. 

 The compressed internal layer consists of thick-walled, elon- 

 gated cells with a small lumen. The reserve cellulose cells 

 and internal layer contain fat and protein. 



Embryo. The exterior walls of the first row of cells are 

 thickened. The internal cells are smaller and thinner-walled 

 than those of the outer row. The walls color blue with 

 chlor-iodide of zinc. Cells contain fat, protein, and small 

 starch grains. — (St. Louis, Eggert, Mo. Bot. Gard.) 



Amorpha fruticosa, L. 



PI. XI. f. 6-6b. 



This species was studied by Schleiden and Vogel, who 

 reported the presence of endosperm. It does not differ 

 essentially from A. canescens. Testa and endosperm 150- 

 335 n in thickness, this variation largely due to the 



