1 1 6 Oliver . — On Physostoma elegans , Williamson . 
of integument below a furrow showing radial seriation. U. C. L., R. ioo (Shore), x ioo 
(see pp. 96, 98). 
Fig. 29. Transverse section of an undersized seed cut about two-thirds up from the base. The 
most striking feature is the tapetum {ip.'), which has almost entirely separated from the external 
tissues. The right-hand end of the figure shows the ribs at a somewhat higher level than the left- 
hand end. v.b. vascular strands, which stand well away from the tapetum. U. C. L., R. 99 (Shore), 
x 32 (see pp. 99, 100). 
Fig. 30. Group of pollen-grains and bodies supposed to be spermatozoids. Three pollen-grains 
(a,b, and c) are shown, and a cell-reticulum d, presumed to be the remains of a fourth pollen-grain ; 
b contains two spermatozoids and c one : two others are present, one in contact with d , the other 
between d and b. B. 17 (Shore), x 380 (see p. 94). 
