212 Trans. Acad. Sci. of St. Louis. 



internal part of the endosperm consists of thick-walled, 

 elonsrated cells with a small lumen ; all of the cells contain 

 protein and fat. 



Embryo. Epidermal cells smaller than the parenchyma 

 below; exterior walls thickened, measuring 19-25 /x long by 

 11.2-25.2 II wide ; those below the outer epidermis are 30-60 fi 

 long by 20-25/7 wide. The cells towards the procambial 

 vessels are shorter. Several rows of palisade parenchyma 

 under the epidermal cells of the inner face. Cells of the 

 embryo contain protein and fat, but no starch. — (St. Louis, 

 Pammel.) 



Gleditschia monosperma, Walt. {G. aquatica, Marsh.) 



PL XVIII. f. 2. PI. XXXIV. f. 2, 9. 



Testa smooth and shining, with endosperm, 1245 // thick. 

 Endosperm 960 /x across. Sclerotic nutrient layer 112 fx 

 across. Malpighian cells 92-93 ^ long. Osteosclerids 20 [i 

 long. Malpighian cells agree essentially with those of 6r. 

 triacanthos; cuticle and cuticularized layer prominent; pore- 

 canals conspicuously enlarged in the light line region ; rem- 

 nants in these canals color the same as the cell contents do ; 

 light line does not stain. Gentian violet stains the contents 

 readily. Osteosclerids as in the last species. The sclerotic 

 nutrient layer and the inner testa agree with those of G. 

 triacanthos. Endosperm cartilaginous ; walls differentiated 

 into primary, secondary and tertiary thickenings. Embryo 

 with palisade cells on the inner surface or superior face; cells 

 of the procambial region small. — (St. Louis, Kellogg.) 



CAESAIiPINIEAE — Amherstieae. 



Tamarindus, To urn. 



The thick-walled cells of the cotyledons of Schoiia speciosa 

 and S. latifolia were described by Schleiden and Vogel, who 

 state that the walls color blue with iodine. In this respect 

 they are like those of Tamarindus, long ago studied by 

 Schleiden, and since by many other investigators. The thick- 

 walled cells of the cotyledons of Schotia latifolia and the 

 dissolution of the aleurone grains were studied by Godfrin in 



