FRUIT AND SEED OF THE JUGLANDER. 249 
By the end of June the fruit has still further increased in 
length as well asin breadth. The growth in length has especially 
taken place between the base and the uppermost point of attach- 
ment of the bracteoles, which therefore seem to have been carried 
up. They have also increased in size, while the perianth remains 
unaltered. The two masses of colourless tissue as seen in 
longitudinal section at the base of the ovary are still solid or 
unbroken, 
The fruit continues to grow rapidly, especially at the base, so 
that by the end of J uly the posterior half of the bracteoles seems 
to be carried still further up, distinctly more so than the anterior. 
Transverse section of Fruit. x3,-—W, IV, wings; Pe, pericarp; Co, Co, 
Co, Co, four spaces of altered tissue ; Ov, ovule. 
The neck of the fruit, on the contrary, has increased considerably 
in thickness, but scarcely at all in length. Fig. 3 ee > 
transverse section, and on each side of the ovule (Co, Co, Co, Co) 
are the four approximately circular patches of colourless tissue, 
which ina longitudinal section appear more elongated. In them 
the tissue is commencing to disintegrate, while round them, on 
the contrary, it is becoming distinctly sclerenchymatous. Op 
the development of the lower part of the fruit especially on the 
posterior side, the posterior portion of each bracteole appears 
to be nearly on the summit of the fruit, the anterior portion 
being rather lower down. 
Fig. 4 is a longitudinal section taken on the 8th August. It 
passes through two of the masses of loose tissue mentioned 
above, and which now form cavities; while, on the other hand, 
the surrounding tissues haye become much denser, ee 
however, oval spaces of cortical tissue shown in section at 
Co', Co’. 
LINN. JOURN.— BOTANY, VOL. XXVIII. U 
