1914] 



HILL— ANATOMY OF LYCOPODIUM 



69 



Figs. 8, 9. — L. Phlegmaria: transverse sections in the same series, showing the 

 development of the crescent-shaped xylem mass from the parallel-banded type; the 

 same method of development is found in L. carinatum, which carried farther gives the 

 amphivasal condition; px % protoxylem; p, phloem; X500. 



/ 



Fig. 10. — L. varium: transverse sections of the strobilus apex, showing the radial 

 arrangement; /, leaf trace; px } protoxylem; p, phloem; X500. 



