Pammel — Anatomical Characters of Seeds of Leguminosae. 195 



Cells thin-walled, usually as long as broad, obtuse, 106 fi long. 

 Cell-cavity wide at the base, gradually tapering upward. 



Osteosclerid. Thick-walled cells 19 fi long; intercellular 

 spaces nearly square. Cells with a brown pigment. 



Nutrient. Layer differentiated into two parts. In the 

 upper part the cells are thin-walled and elongated, with large 

 intercellular spaces; in the lower part they are smaller and 

 thicker-walled. 



Endosperm. The endosperm is reduced to the aleurone 

 layer. 



Embryo. The cells of the first row on the inner face are 

 much smaller than the cells below. Cells of the second row 

 are larger and compactly arranged; those of tlie interior are 

 larger and more loosely arranged. The epidermal cells as 

 well as those of the second row contain little or no starch. 

 Walls of the cells of interior part of the cotyledons with pore- 

 canals. The epidermal cells of the superior surface of the 

 cotyledons are elongated, thick-walled, and contain no starch; 

 palisade cells absent. Cells contain elliptical, spherical, or 

 very irregular starch grains, aleurone grains, and fat. 



Strophostyles pauciflorus , Watson . {S. paucijlora , Benth . 



Watson. Phaseolus paucijiorus, Benth. Kew Index.) 



PI. XXI. f. 3. 



Testa and endosperm 400-420 /i thick. Cuticle pronounced, 

 covered with hairs ; light line runs close under the cuticle; cell, 

 cavity larger than in S. angidosa ; cells contain an abundance 

 of pigment and tannin. The intercellular spaces of the 

 osteosclerids are elongated; the bars of the I-shaped cells are 

 equal. The cells contain a great deal of tannin and pigment. 

 Nutrient layer is as unequally developed as in the last species, 

 with an abundance of vessels in the lower portion. Endo- 

 sperm sparingly developed. The first row of cells, the aleu- 

 rone layer, with thick walls, containing protein. Cells of 

 superior face similar to those of inferior surface. 



ViGNA, Savi. 



Testa nearly colorless or pigmented, well-developed. The 

 Malpighian cells are elongated ; the thinner portions of the 



