Pammel — Anatomical CJiaracters of Seeds of Leguminosae. 199 



Clitoria, L. 



Schleiden and Vogel give a brief account of Clitoria Ter- 

 natea^ L., in wliich they found thick-walled cells in the cotyle- 

 dons. This is not characteristic in all the species. Chalon 

 indicated the presence of endosperm in the genus. In both 

 of our species endosperm is present. Schleiden and Vogel 

 expressed some doubt with reference to endosperm. The 

 general characters of the seed and the germination of the 

 above species are given by Lubbock. Germination studies of 

 C. Mariana were made by Holm. The>aphe is absent. The 

 chalaza occurs in the thickened part of the testa. The 

 micropyle is adjacent to the hilum. 



Clitoria Mariana, L. 



PI. XVIII. f. 4. PI. XX. f. 1 . 



Testa and endosperm 230-235 fi thick, the former brown. 



Malpighian. Cells are 70-74 /Li long. Cuticle somewhat 

 uneven ; the narrow light line occurs close under the cuticle; 

 cavity wide at the base, becoming very narrow in the middle. 

 Pigment irregularly distributed — portions are deeply colored. 



Osteosclerid . Cells are 22.4 /-t long, thick-walled and elon- 

 gated ; cavity very much reduced ; bars of the I-shaped cells 

 nearly equal ; intercellular space narrow and elongated. Cells 

 contain pigment and tannin. 



Nutrient. Layer differentiated into two parts. The cells 

 of the upper part are thinner-walled, and contain less pigment 

 than those of the lower portion. Vascular elements occur in 

 the lower part of the layer. 



Endosperm. The large aleurone cells are nearly isodiamet- 

 ric and continuous, thick-walled, containing protein. The 

 aleurone layer is followed by the mucilaginous reserve cellu- 

 lose. It is somewhat variable as to thickness; the internal 

 layer consists of thick-walled, elongated cells, with a narrow 

 lumen. The cells contain protein. 



Embryo. Cells of the first row are smaller and form a con- 

 tinuous layer ; epidermal cells of superior face like those of 

 inner surface, exterior walls thickened; interior cells with 

 thicker walls and provided with pore-canals. Palisade cells 

 wanting. I do not hesitate to consider this reserve cellulose. 



'O' 



