218 Trans. Acad. Sci. of St. Louis. 



LiOteae. 



Cuticularizecl layer well developed ; osteosclerids I-shaped ; 

 endosperm evident, gelatinous. Cotyledons with palisade 

 cells ; starch absent Hosackia. 



Galegeae. 



Cuticularized layer of the Malpighian cells usually not 

 prominent ; osteosclerids I-shaped ; endosperm various, 

 usually evident; reserve material usually consists of aleu- 

 rone grains and fat, exceptionally starch. 



PsoRALiEAE. Cuticularized layer and mycotic cells variable. 

 Cotyledons with palisade cells. 



1 . Mycotic layer evident Psoralea. 



1. Mycotic layer not evident (2). 



2. Cuticularized layer not greatly developed. Starch 

 grains present or absent.. Z^aZea, Petalostetnon and Amorpha. 



Indigofereae. Malpighian cells long; osteosclerids 

 I-shaped; endosperm conspicuous. Cotyledons with palisade 

 cells ; starch absent Indigofera. 



Tephrosieae. Cuticularized layer not strongly marked; 

 osteosclerids I-shaped ; mycotic layer variable ; endosperm 

 reduced. Palisade parenchyma present or absent. 



1. Lysigenetic canals in cotyledons Tephrosia. 



1. Lysigenetic canals absent; an abundance 



of starch Wistaria. 



Eobinieae. Cuticularized layer strongly developed; 

 osteosclerids I-shaped; endosperm well developed; starch 

 absent Robinia. 



AsTRAGALEAE. Cuticularizcd layer narrow, osteosclerids 

 I-shaped; endosperm well developed. Cotyledons with pali- 

 sade cells. 



1. Osteosclerids usually with longitudinal 



pores Astragalus. 



1. Osteosclerids without longitudinal pores (2). 



2. Nutrient layer much compressed Glycyrrhiza. 



2. Nutrient layer less compressed Oxytropis. 



Hedysareae. 



Malpighian cells usually well developed ; osteosclerids 

 I-shaped ; endosperm varialjle, copious or reduced. Cotyle- 

 dons usually with several rows of palisade cells. Reserve 

 material consists of fat, aleurone grains and exceptionally 

 starch as well. 



CoROXiLLEAE. Light line removed some distance from the 

 cuticle; osteosclerids I-shaped; nutrient layer compressed; 



