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broadly subulate or rather deltoid, flat laciniae. They are mostly 

 spreading and alternate, and are, as a rule, a little longer 

 than, the broadly linear portion i. e， rachis of frond. Those on 

 the upper branches are incurved and longer than the breadth of 

 rachis, while on the basal portion of all branches they are shorter, 

 deltoid and patent, giving subserrate appearence to the rachis. 

 The longer lacin'ae are about | longer than the breadth of rachis. 

 Branches are furnished with the slightly prominent midrib, and 

 the wings are broader on the upper than on the lower portion 

 of branches. 



The central portion of frond is occupied by. an axis, composed 

 of thick, cylindrical cells. From a portion a little higher than the 

 middle point of each axial cell, four branches arise in verticillate 

 manner. Of these, two shorter ones are directed towards sur- 

 faces and they are soon lost becoming indistinguishable from 

 rhizoidal filaments which densely surround the central axis. One 

 of the other two reaches the apex of lacinia, while the remaining 

 one reaches the axil of laciniae. The latter may give rise to 

 normal branch, and in fructified frond, fertile ramulus developes 

 from it. Around the axis there is a niore or less thick layer 

 of longitudinally running rhizoids which branch dichotomously 

 and anastomose to each other. The rhizoidal layer is again 

 covered by a thick intermediate layer of which the inner cells 

 are larger and roundish. They become gradually smaller out- 

 wards and are finally covered by a few layers of cortical cells. 

 Some of larger cells near the surface are filled with orange- 

 coloured contents. , 



Mode of growth of the frond is terminal, with a large 

 apical cell which is horizontally or slightly obliquely jointed. The 

 successive cells just beneath the apical cell soon give rise to 

 .alternate and incurved laciniae which elongate by division of 



