258 
Notes. 
the sporophyll at C. The ligule D is shown arising freely from the 
upper surface of the sporophyll just where the latter bends upwards 
to form one of the covering scales of the cone. At E the distal ends 
of two sporangia are shown, each filled with spores ; while at F is 
seen a ‘pad’ of tissue forming a portion of the attachment of the 
upper sporangium to the sporophyll, the dark bodies having probably 
been ‘ mucilage-cells/ 
Woodcut i. — Nearly radial section of the periphery of the cone of Lepido- 
strobus ( x 32 : semi-diagrammatic). A peltate expanded portion of sporophyll, 
with B its vascular bundle; C short tracheides ; D the ligule; E sporangia and 
spores; F pad supporting sporangium. 
In another slide (C. N. 568) the ligule is seen in transverse section, 
showing a triangular form with one angle directed inwards, and very 
similar to sections figured in Hovelacque \ 
The length of the ligule shown in the figure is about -5 mm., and 
the tissue consists mainly of a very small-celled parenchyma, the cells 
of which exhibit dense contents, making it probable that they were of 
the nature of mucilage-cells. Near the base is to be seen a transverse 
row of four or five larger clear cells possibly representing the glosso- 
1 Loc. cit. ; cp. Fig. on p. 95, and T. xvii, PI. vii, Fig. 2. 
