REPORT OF THE DIRECTOR, 1922 61 
divisions are alternately arranged ; no indication has been found of the 
occurrence of dichtomous divisions in the upper part of the fronds, 
as mentioned by Dawson (see page 57) under his description of 
Caulopteris lockwoodi. This specimen of “Caulop- 
teris lockwoodt1” ts the only clue we have as to the charac- 
ter of the petioles and the arrangement of the fronds upon the trunk. 
The petioles are described as slender and much expanded at the base 
and spirally arranged in about five ranks (see figure 1). Many of 
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Fig. 3. Part of main rachis and lateral branches of the frond of Eosperma- 
topteris. The slab has a greatest width and length of 2 feet. 
the impressions of the frond stems show a central groove or depres- 
sion with a flattened area on each side (plate 10, figure 4) from 
which branch off the next smaller divisions and, on the ultimate 
pinnae, the pinnules. This depression is probably the impression left 
by the central woody strand or bundle. 
The pinnules are of a simple Sphenopteridium type, 
reminding one of, but simpler than, the Sphenopteridium 
