Pammel — Anatomical Characters of Seeds of Leguminosae. 201 



Nutrient. This layer is differentiated into two parts. The 

 upper portion consists of larger thin-walled cells. Cells in 

 the lower part thicker-walled and containing some pigment. 

 The vascular elements occur in this region. 



N'ucellus. This is much compressed. 



Endosperm. As in all other genera of the tribe Phaseo- 

 leae, the endosperm is greatly reduced, consisting of a 

 single row of cells, the aleurone layer, having very thick walls. 

 The contents of the cells consist of granular protein. 



Embryo. The exterior walls of the first or epidermal cells 

 are thickened. The cells below are larger and more loosely 

 arranged. All of the cells contain fat and protein. 



Amphicarpaea Pitcheri, T. & G. ( Falcata Pitcheri, T. & G., 



Kze.) 



The anatomy of this species has been studied by Schively, 

 and its germination by Hitchcock. Malpighian cells with a 

 slightly irregular cuticle; cuticularized layer but slightly 

 developed; the light line occurs close under the cuticularized 

 layer ; cells with an abundance of pigment which is soluble in 

 water. Osteosclerids I-shaped, long, with a large intercellular 

 space. Nutrient layer and endosperm much compressed. 

 Epidermal cells of the cotyledons much smaller than the 

 underlying parenchyma. Exterior walls much thicker than 

 the lateral ones. The second row of parenchyma cells inter- 

 mediate between the epidermis and the parenchyma of the 

 inferior. Large aleurone grains imbedded in the oil plasma. 

 Starch absent. Palisade cells wanting. — (Muscatine, Kep- 

 pert, — Washington, D. C, Steele.) 



Galactia, p. Br. 



Endosperm reduced. Anatomically the genus shows close 

 relationship to Rhynchosia . The germination of G. glabella, 

 Michx., has been studied by Lubbock. 



Galactia glabella, Michx. ( G. regularis, L., BSP.) 

 The yellowish testa and endosperm vary from 149-166 fi in 



thickness. 



Malpighian. The cells are 70 /x long. Cuticle somewhat 



