100 LOCK : PRESENT STATE OF 



almost or quite confined to the walls of the I-shaped cells of the 

 outermost layer itself, and is insoluble in boiling water. The 

 gray colour seems to be due to a greenish solid pigment 

 deposited in the cavities of all or nearly all the cells of the 

 testa. 



(iv.) Certain seeds on plants having the gray character, and 

 more especially when the maple character is also present, 

 exhibit a uniform purple pigmentation, effectively obscuring 

 ail other colour characters. The latter, however, become 

 visible when the purpls pigment is dissolved out with boiling 

 water. Only a few seeds on a plant are usually affected in this 

 way, and, although all the seeds of a pod may be alike in this 

 respect, this is not always the case. Sometimes only half the 

 surface of a seed shows this pigmentation. 



Seeds showing this character, and other seeds from the 

 plants which bore them, were not observed to produce a larger 

 proportion of affected plants than seeds from plants not 

 affected. The phenomenon can only be attributed at present 

 to unknown conditions of development. 



Seeds of this kind were observed both upon pure strains and 

 upon cross-bred plants. 



B. — The hylum may be very dark brown or black (dark 

 hylum) as opposed to a very pale brown (pale hylum). 



C. — The leif oxils may be either green and unpigmented 

 (green axil), or they may show one of two readily distinguish- 

 able shades of purple , a dark brownish purple (purple axil) , or 

 a pale pinkish purple (red axil). 



D. — The flowers may have deep blue-purple wings and 

 standard of a pale purplish blue colour (purple), or the wings 

 may be from pink to deep crimson-red with pale pink to nearly 

 white standard (red) ; or as a third alternative the flowers may 

 be entirely unpigmented (white). Red flowers are constantly 

 associated with red, as opposed to purple, axils and with a 

 recognizable tinge of testa colour — the spots on the testa, 

 whether deep or faint, being reddish with scarcely a trace of 

 blue. Plants with white flowers have always unpigmented 

 axils and testas. 



The inheritance of all these characters, with the single 

 exception of that referred to under A (iv.) above, can be 



