XX] 



HABIT 



99 



a rule theyjare disposed in a single series on either side of the midrib (Fig. 

 392). Probably in all the genera the sori had originally a close relation to 



Fig. 392. Pinnae of five genera of the Marattiaceae. A=A>igiopteris crassipes Wall.; B = Archan- 

 giopieris Henryi (Z\\\\=X and Giesen. ; C=Marattia faxinea ^m.; D=Chrisiensenia (A'au/fiissia) 

 aesculifolia Bl.; E = Danaea elliptica Sm. {A, C, D, E after Bitter; B, after Christ and 

 Giesenhagen.) (From Engler and Prantl, Nat. Pfla)izenfam.) 



the margin, after the manner oi Angioptcris and Marattia: and this position 

 they actually have in the early fossil, Coryneptcris (p. 33, Fig. 334). In all 



7—2 



