OF CIlBTACIiOUS TLVMS. 



2G3 



L. 







X 



Text-fig. 18. — Liihiifhamnium turoiiicum, Eotlipletj. A. Extenial form, 

 natui-al size. B. Part of the thalln.^ to sliow tl)e cells and tetraspore 

 zone, X 25. After Eotlipletz. 



A. 



C. 



B. 



\l 



Tcxt-fii^. Vd.--Ltthot]tayiininm ainjjhiro(Bfor,rdi^, Roihpletz A External 

 form, natural size. B. Ti-ansverse section, at.d C. Loiigitiulinal section, 

 sliowing llie zones of cells. !B X 45 and C X -''0. After Eotbpletz. 



