54 



b. Antheridia and sporophydia separated ; sporophydia, 

 but not antheridia, in the fundus of the verticil. 

 7. succincta A. Br. 

 b. Corticata; stem variously corticated. 



Qj. Haplostichse; series of cortex cells equal to the number of 

 leaves. 



* Dioecious. 8. sub-mollusca Ndst. ined. 



* * Monoecious. 9. myriophylla F. Mull. ; A. Br. 



9| Qj. Diplostichae ; series of cortex cells double the number of 

 leaves. 



* Dioecious. 



f Both Antheridia and sporophydia in the fundus of 



the verticil. 10. leptopitys A. Br. 

 f f Neither Antheridia nor sporophydia in the fundus of 



the verticil. 



X Small, slender, stipules pressed against the verticil. 

 Q Unistipulata, stem with small papillae. n. mol- 



lusca A. Br. 

 OO Bistipulata, stem spinescent. 



-f- Nucleus, 420-480. 12. dichopitys A. Br. 

 -| |- Nucleus, 630. 13. subsp. Ecklonii A. Br. 

 X X Larger, stipules spreading ; nucleus, 800. 14. 

 Hornemanni Wallm. 



* * Monoecious. 



j- Gymnophyllae (leaves usually naked). 

 X Stipules large. 



-{- Fruit conjoined, both sorts on one node. 

 Nucleus black. 



4 Unistipulata. 1 5. Benthami A. Br. (subsp. or 



var. of gymnopitys). 



## Bistipulata (commonly.) 16. gymnopitys 

 A. Br. 



1) Nucleus 440-550 (330-380) long, stem 



equally striated. i6a. . 



2) Nucleus 440-470, primary cortex cells more 



prominent; large. i6b. duriuscula 

 A. Br. 



3) Nucleus 700-720. i6c. acanthopitys A. Br. 



4) Nucleus 680-700; leaves of verticil, 14-15; 



nodes, 4-6. i6d. tr achy pity s A. Br. 



