103. SELAGINELLA. 61 



Key to the Malayan sections and groups. 



. Stems 1-2-stelical. A>. MONOSTELICAE. 



2. Sporophylla isomorphous or nearly so, the spikes therefore rather 

 square, as broad as thick. A 1 , a. llomocosfacliys. 



3. Shoots (stems, branches) densely tufted or radially arranged 

 at the apex of a short, or elongated and erected, trunk-like 

 main stem. A 1 , a 1 . JRo*Z<mfe. 



3.3. Shoots (stems, branches) independent or springing from a 

 short or elongated and creeping rhizome-like main stem. 

 4. Stems not pubescent. 



5. Leaves heteromorphous on both stems and secondary 

 branches, the intermedial ones erect, the lateral 

 ones spreading, or rarely erect in group 7.9. 

 6. Small or middle-sized species, the ultimate 

 branchlets to 4 mm. broad, and the stem at 

 best 'A mm. thick. A 1 , a 2 . Decumbentet. 



e.e. Large or middle-sized species, the ultimate 

 branchlets 4 mm. broad or broader, or the stem 

 more then 3 4 mm. thick. 

 9. Shoots branched down nearly or quite to 

 the base; root-fibres extending to conside- 

 rably beyond the place where the branching 

 begins, often to the higher nodes. 



A 1 , a 3 . Kttdicante*. 



9.9. Shoots branched down quite to the base, 

 or the lower part simple, stipitiform, with 

 the lateral leaves sometimes erect; root- 

 fibres confined to the base or extending 

 to a little beyond the place where the 

 branching begins. A 1 , a 4 . Ascendent eg O. 

 &.&. At least the leaves of the lower half of the stipiti- 

 form lower part of the shoots isomorphous or nearly 

 so, erect. A 1 , a 5 . Cauletcenteg. 



4. J. Stems more or less distinctly pubescent. 



A 1 , a 6 . Pubetcente*. 



( l ) See the information on page 59. 



