flora] innovation, also of the FruUania type. 1 li. Leafy stem with a eoeloeaule surrounding the 

 sporophyte, X 20; B, female bract; C, eoeloeaule; E, unfertilized arehegonium ; F, branch of 

 the Frullania type. 1 j. Tip of a rhizoid, X 180. 1 k-n. Stages in the development of a re- 

 generant protonema at the tip of a rhizoid, X ISO. 1 p. Diagram to show the arrangement 

 of regenerant protonemata in a rhizoid system. 

 All after Fulford & Taylor, 1960, 19(52. 



