XV] 



EMBRYOS OF MARATTIACEAE 



303 



with a difference in form of the embryo, and Campbell contrasts the pear- 

 shaped embryo of Danaea with the broadly elliptical and much depressed 

 embryos of corresponding stages in the other Marattiaceae. Recently he 



Fig. 286. Embryos of Marattiaceae, all orientated with thearchegonial neck downwards 

 as in nature. a — Angiopteris\ b = Kaulfiissia\ c — Marattia; d, c = Danaea jattiai- 

 censis. (All from Campbell's Eusporangiatae.) 



Fig. 287. Embryo oi Macroglossutn, after Campbell, showing the 

 natural orientation, and the relation of the suspensor to the 

 archegoriium. 



has found a similar organ present in the embryo of the new genus Macro- 

 glossum (Fig. 287). Here the long pear-shaped embryo takes an oblique course 

 in its development, as though accommodating itself to the narrow bounds of 



