543 



larged to a band girdling 

 the stalk. In other cases 

 the stalk was perfectly 

 healthy up to its upper- 

 most internodes. 



The uppermost leaf 

 sheaths and leaves, how- 

 ever, had ."^traw-colored 

 siK'cks (Fig. 114 H /) 

 or jjjts. The upper part, 

 together with the base 

 rif the si)indlc of the 

 head, was a reddish 

 straw color. The spinrll'- 

 itself was brownish, dot- 

 ted with salmon spots, 

 entirely bare at the base 

 (k) but. further up, 

 co\'ered with paper}' 

 glumes, at first thread- 

 like but later becoming 

 somewhat broader (sp). 

 The tip of the head 

 could develop fully, as 

 shown in Fig. 114, /y, 

 and the nearer this green 

 tip the thread-like, white 

 glumes stand, the coarser 

 and larger they become 

 and the more their con- 

 stitution approaches the 

 normal condition. At 

 times groups are found 

 with green fleshy glumes 

 on the part of the 

 spindle which remains 

 bare CFig. j 14, B a). 



Fig. \\4 A repro- 

 duces a case in which 

 the lower glumes are 

 normal and green. The 

 upper ones are normal 

 m size and form but 

 have a reddish, straw- 

 colored appearance; the 



Viii. 114. DifRiont fuirnK ol .sterility. 



