Plate VI. 



Af(ir/a iiiar(/lnafa Posj\ et Kupk. 



Y'iii. 1. Dasiil part of a fulh' maturod plant. Mat. si/e. 



F]'ii,s. 2-4. Cross sections of the nàrlriKs of a Aonni;', lialf-ni;iturtHl. aiid a 

 fully niatiu'ed plant n^spectivelv, tlie last tii;.nre sliow iniï one 

 lialf i^f tlio In'eadtli. x •"). Tins species lias the s])annin!L!; cortex 

 poorly (liftèrent iated, sometimes not rea-chini;- to the cpide^rmis as 

 sliown in Yh^. 4. and sonietimes detached as in Fii;-. '■>. The 

 rallns formîition has l)eeu j^'enerally less fr('<jncntly observed in 

 the inarüinal swcllinus of the }n(^dnlla. 



