Pammel — Anatomical Characters of Seeds of Leguminosae. 151 



Embryo. Cells of the first row smaller than those below; 

 exterior walls thickened more than the lateral; all of the 

 ceU-waUs consist of cellulose. Cells contain fat and protein 

 grains; starch grains do not occur, though Harz says they 

 are usually abundant. In several specimens examined I was 

 unable to find starch, neither when potassium hj^drate nor 

 weak sulphuric acid was used with the iodine. — (Fritchey, 

 Craighead, Penn., Mo. Bot. Gard.) 



Medicago denticulata, Willd. 



PI. VIII. f. 4-4h. 



The seeds of this species agree with those of M. lupuUna. 



Malpighian cells 35-38 (x long; the narrow light line occurs 

 below the conical layer; the chromatophores are absent. 



Osteosclerids 16-18 // long; longitudinal striae well marked. 

 Cross sections show beyond a doubt that these striae are 

 canals. The nutrient layer is much compressed. 



Aleurone layer of endosperm as in M. lupuUna. The muci- 

 laginous reserve cellulose not so strongly developed as in the 

 last species. Treatment with iodine gives no reaction for 

 starch; nor do blue grains appear when. treated with weak 

 sulphuric acid and iodine, or potash and iodine. An abun- 

 dance of fat and protein grains occur in the cells. Walls of 

 the reserve cellulose color light blue. Malpighian cells a 

 darker blue. — (Todaro, Palermo, Herb. Curling-Joad, Mo. 

 Bot. Gard.) 



PAPILIONACEAE — Loteae. 



HosACKiA, Dougl. (Lotus, L.) 

 Anatomically the seed of this genus is very distinct from 

 Medicago, TrifoUum, Melilotus, and Ononis. It shows 

 considerable affinity to Lotus and Tetragonolohus . 



HosACKiA PuRSHiANA, Bcuth. {Lotus amevicanus, Nutt., 



Bisch.) 



PI. XI. f. 5 -5b. 



Testa conspicuously brown-colored, uniform. Endosperm 

 somewhat variable in thickness. Endosperm and testa 180 /j. 

 in thickness. 



Malpigliian. Cuticle strongly developed; outer surface 



