Pi^ATi; XXV. O. speciosum (From Bry. Eur.). 

 3 and 5. Leaves. 7, 8. 10 and 15. Capsules and peristome. 



Pi,ATE XXVI. 0. sordidvm (From SulHv. " Icones Muse. Suppl.'*) 

 1. Plants natural size. 3. Leaves. 4. Leaf sections. 5. Cellular struc- 

 ture of leaf base and apex. 12, Antheridial branch with antheridium and 

 paraphysis. 11. Segment of peristome highly magnified. 13. Superficial 

 stoma. The other figures are self-explanatory. 



