Pammel — Anatomical Characters of Seeds of Leguminosae. 213 



his work on the comparative anatomy of the cotyledons and 

 albumen. The germination of Pellogyne and Hymenaea 

 Courbaril was studied by Lubbock; that of Tamarindus, by 

 De Candolle in his memoir on the Leguminosae. 



Tamarindus indica, L. 



PI. XXXIII. f. 2. 



Malpighian. Cells are 190-210 p. long. Light line occurs 

 close under the cuticularized layer; cell-cavity is wide at the 

 base ; several pores extend into the cells much beyond the 

 light line, 



Osteosclerid . The cells are brown, not essentially different 

 from those of the upper part of the nutrient layer. 



Nutrient. This layer is divided into three parts ; the walls 

 of the outer are thick and star-shaped ; middle portion with 

 thinner walls; the parenchyma cells of the lower part are 

 large, with comparatively thin walls. Numerous intercellu- 

 lar spaces in the parenchyma. Some of the cells contain 

 pigment. 



Endosperm. This consists of several rows of small cells. 

 This portion of the seed is much compressed. 



Embryo. The epidermal cells are small, and occur in two 

 or three rows, followed by smaller cells. The remainder of 

 the embryo, the reserve cellulose, consists of thick-walled cells 

 with pore-canals. Cells of the caulicle are smaller and thin- 

 walled. Cells contain small protein grains. Starch is absent. 



MIMOSEAE — Adenanthereae. 



Prcsopis, L. 

 The seed of the mesquit is surrounded by a papery aril. 

 Prosopis juliflora, DC. 



Fl. XVIII. f. 3-3d. 



Testa and endosperm are well developed. Testa quite uni- 

 form iu thickness. Endosperm somewhat variable. 



Malpighian. The cells are thick-walled ; cuticularized layer 

 strongly developed, as in Cassia; light line occurs above the 

 middle ; pore-canals project into the cell-wall below the cuticu- 

 larized layer; cell-cavity wide at the base, but a mere line 



