CORRECTIONS, ADDITIONS 



AND 



EXPLANATIONS. 



P. 5, 1. 3 fr. b.; for ZALUSIANSKAYA. read ZALUSIANSKYA. 



P. 52, 1. 10 fr. b.; for rows; read planes; 



P. 65, 1. 9 et passim; for of the branchlets similar etc. 



read of the branchlets similar to those of the 

 stem (or the stipe, the main rachis, etc.) 



etc. 



P. 66; S. ceratocaulos. Insert See the Appendix. 

 P. 68, 1. 11 fr. b; for Desv., read Desv., 



P. 70, 1. 2 1 fr. b. et passim; for sporophylla uniform (or isomorphous, 



subisomorphous) but those of the 

 lower plane (or the ventral, the 

 posterior) somewhat larger, . . . etc. 



read sporophylla etc 



somewhat larger than the others 

 (or the dorsal, the anterior), 



etc. 



P. 71; S. reniotifolia. Insert See the Appendix. 

 P. 84, 1. 13 and 11 fr. b. should be modified as follows: 

 O Lateral leaves spuriously veined. 

 OO Lateral leaves not spuriously veined. 

 P. 88; S. Quadrasii. Insert See the Appendix. 

 P. 108; S. magniOca. Insert See the Appendix. 



