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. 



Er^ibryo. 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 fjt in thickness, this variation largely due to the 



