CH. XXVIl] 



HABIT 



235 



Fie- =^0+. Habit of Trichomanes. A^T. renipnue Foist. B=T. menibranaceum L. ; a, sterile, 

 b, fertile. C=r. Lyallii Hook.; a, sterile, /', fertile. /):= T. spicatum Hedw. (After Sadeheck, 

 from Engler and Prantl.) 



