OF THE FOSSIL PLANTS OF THE COAL-MEASURES. 
363 
Fig. 72. A very small macrospore (?) with trifid peripheral appendages. Enlarged 
214 diameters. 
Fig. 73. A minute macrospore (?). Enlarged 214 diameters. 
Fig. 74. A minute macrospore (?) resembling fig. 73, but with shorter subdivided 
peripheral appendages. Enlarged 214 diameters. 
Fig. 75. A peculiar conceptacle filled with large cells. Enlarged 140 diameters. 
Fig. 75 A. A similar example to fig. 75, enlarged 100 diameters, but without the 
contained cells, and exhibiting the cellular areolation of the wall bounding 
the central cavity. 
Fig. 75b. Transverse section of another example of the same. Enlarged 100 
diameters. 
PLATE 24. 
Fig. 75c. Another example, but containing a mass of parenchyma. Enlarged 100 
diameters. 
Fig. 75 d. Four cells from the part, a, of the parenchyma of fig. 75 c. Enlarged 
400 diameters. 
Fig. 76. A similar cavity to fig. 75 a. Enlarged 214 diameters. 
Fig. 76 a. A transverse section of a cellular conceptacle. Enlarged 214 diameters. 
Fig. 77. Microspores from Halifax, a little larger than those represented in fig. 43. 
Enlarged 216 diameters. 
Fig. 78. Transverse section of a conceptacle similar to fig. 76 a, but with narrower 
peripheral cells. Enlarged 214 diameters. 
Fig. 78 a. One of the peripheral cells of fig. 78. Enlarged 866 diameters. 
Rachiopteris gleiche (?) ; Chorionopteris of Corda. 
Frn. 79. Part of the transverse section of a Petiole. 
O 
Rachiopteris cylindrica. 
Fig. 80. Transverse section. Enlarged 33 diameters. 
Figs. 81, 82, and 83. Transverse sections of three successively smaller stems. 
Enlarged 33 diameters. 
Fig. 84. Portion of the cortical layer, b, of fig. 82. Enlarged 143 diameters. 
Fig. 85. The same section as fig. 83. Further enlarged to 143 diameters. 
Fig. 86. Longitudinal section of a stem like fig. 80. Enlarged 40 diameters. 
Fig. 87. Section of a stem giving off a lateral branch. Enlarged 33 diameters. 
Fig. 88. Transverse section of a stem found in the same slide as figs. 80 and 87. 
Cordaites (?). 
Fig. 89. Portion of an epidermis, probably of Cordaites. Enlarged 360 diameters 
