tracheids schaum but walls between schaum bars for pseudoclass cis bow pits Fertile branch still smaller than skel of main 4/2 tend to be rectangular 2 Dichotomize .2 times quickly and central one aborts Bum is aborted middle br. Each of 2 bran does this again Fertile much branches 2 x again in what at angles Then sporangia terminal on stool branch Sporangia borne in pairs terminal 64 in small clusters Above fertile part of main axis there is a stalk thin