i6 



branch ; a, /3, hair-leaves on lateral branches ; a, b, the same on those 

 growing from the dorsal and ventral side respectively ; 3 . Fig. Q : 

 ventral view of an apical portion of branch ; characters same as in 

 Fig. 5 ; ^~. Fig. 7 : cross-section of frond with the dorsal side, a, 

 above, 3 -f--. Fig. 8 : diagramatic cross-section of frond with a 

 scutate root, , /3, and d, and e, e indicate places where the normal, 

 the dorsal and the ventral branches arise respectively. Fig. 9 : 

 dorsal view of a stichidium, ' 2 '~. Fig. 10: ventral view of the 

 same, showing cover-cells ; the line a b indicates the lower end of 

 the cavity in which tetrasporangia are contained ; 2 j-. Fig. 11 : 

 terminal portion of a branch bearing a fully grown antheridium and 

 two young ones seen from the dorsal side of frond, ^p. Fig. 12 : 

 early stage of an antheridium ; a, growing apex of the branch ; 3 J. 

 Fig. 13 : anlhericliutn, 2 j. Fig. 14 : a young procarp, p, ^-A Fig. 

 15 : the same bearing a trichogyne, /, --. Fig. 16-17 : cystocarps, 

 'i*. Fig. 18-19 : dorsal view of stichidia, showing the disordered 

 arrangement of basal cells of hair-leaves, 2 - p . 



Herpopteros Falkenberg. 



L CD X C 3 A- 



HERPOSIPHONIEAE (RHODOMELACEAE) 

 & V i -3 t> ft, > 40 r W 35 f4- 



g ** HU ft ' -ft M ? U -y, H3 \) *, 1 iff ^ Jji? * a 9 & ffi ^ ^ ^ 

 n r Pft ^ /, jg M -. -> 7- , m tik 3 v ^ fe -y, & - ^ * <> f* 



& *in aa ? ^ *, & ? & m n m ? &. 7 m - * = b t s/. 



Bi 1% a ? & -J& ^P W i- rmtfL ? E.f ? &&*%& v, jjfa 

 - tfc b In] s? " M pjj - BX g i/, ^ -> 9 m = ^T PS M il 



