400 West. — A Contribution to the Study of the Marattiaceae . 
Text-fig. 30. Marattia Cooperi , Mre. a. Transverse section of the apex of a large root 
showing meristematic region. B. Longitudinal section of the apex of a large root showing 
meristematic region, x 180. 
TEXT-FIG. 31. Kaulfussia aesculifolia, Bl. Transverse section of the apical region of the 
rhizome, showing early origin of a root from the vascular meristem. x 240. 
Bower, 5 , p. 90 and PL IX, Fig. 30 ; and Farmer and Hill, 29 , p. 391, for 
A ngiopteris ; Charles, 23 , p. 96, for Marattia), In the first instance there 
appears to be a single initial cell of elongated prismatic form, from which 
segments are cut off parallel with its long axis (Text-fig, 31). In the larger 
