Pammel — Anatomical Characters of Seeds of Leguminosae. 163 



endosperm uniformly developed, 249 /i thick. Cotyledons 

 796 jj, in thickness. 



Malpighian. Cells 95-98 /li long. Cuticle an even layer; 

 cuticularized portion white ; a narrow light line underneath 

 the cuticularized layer; the cuticularized layer colors blue 

 with chlor-iodide of zinc more rapidly than the light line, 

 which takes on a much paler color than the rest of the 

 cell-wall. Cell-cavity wide at the base, tapering upward. 

 Chromatophores not observed. The cells contain pigment 

 and some tannin. 



Osteosclerid. Cells are thick-walled, elongated, less than 

 half the length of the Malpighian cells. Chlor-iodide of zinc 

 colors the walls blue and contents brown. 



Nutrient. This layer is compressed and composed of three 

 or occasionally more rows of elongated cells. An abundance 

 of a yellowish-brown pigment is present in the cells ; pre- 

 sumably this contains some robinin. The walls color blue 

 with chlor-iodide of zinc. 



Endosperm. The aleurone cells are thick-walled and contain 

 fat and protein. Reserve cellulose consists of three or more 

 layers of thick-walled cells with pore-canals. The cells con- 

 tain protein. The internal part of the endosperm consists of 

 thick-walled, elongated cells; cell-lumen reduced, containing 

 but little fat and protein. 



Embryo. Cells of the first row are smaller, with thick 

 exterior walls ; the cells below are larger and more loosely 

 arranged ; all of the cells contain fat and protein grains but 

 no starch. Cell-walls color blue with chlor-iodide of zinc. 



Wistaria, Nutt. 



Testa spotted with pigment, well developed. Nutrient layer 

 well developed and differentiated into several distinct layers. 

 Endosperm sparingly present. 



Wistaria speciosa, Nutt. ( W. frutescens, Poir. Gray's 

 Manual, 6th ed. 134. JTraunhia frutescenSy h., Greene.) 

 PI. XIV. f. 2-2c. 

 Testa strongly developed, 540-600 /u. in thickness. Endo- 



