SECT. III. SPECIFIC EXAMPLES. 385 



SUBSECTION III. 



Wheat. On the 10th of June, 1808, when the 

 spike was yet wholly invested with the sheathing 

 part of the leaf, the anthers, which were closely in- 

 vested with a corolla, were yet green and pulpy, and 

 measured about ^ of an inch in length ; the filaments 

 were not quite so long. The nectaries measured 

 about T ' T of an inch in length. The styles, which were 

 not yet expanded, formed by their union a sort of 

 cone upon the top of the ovary, and measured about 

 jV f an inch in length. The ovary, which was besides 

 crowned with a fine down, measured about -^ of an 

 inch in length. It had assumed something of its tur- 

 ban-shaped figure, and the convex and furrowed sides 

 were readily distinguishable. When cut open with 

 the knife it presented the appearance of a white and 

 pulpy mass, seemingly homogeneous ; but when in- 

 spected more minutely it was found to contain a 

 central globule of a looser texture and darker colour, 

 measuring about the -^ part of an inch in diame- 

 ter. This globule was the chorion of Malpighi. 



On the 15th, when the spike was half extricated, 

 the anthers exhibited nearly the same appearance as 

 before ; but the filaments were now equal to them in 

 length. The nectaries were -jV of an inch in length, 

 plump and bulging at the base, and finely fringed 

 with down. The styles were somewhat expanded. 

 The ovary, which now measured about T V of an i 



VOL. ii. 2 q 



