PLATE XI. 



. \Cinacl<yra vertex var. montinilm-i*. two porocalycal monticules (x Hi). 

 FIG. 2. One, ditto clarified and lightly stained (x -'n). 

 FIR. 3. Vertical section of a monticule (X '20). 

 FIG. l.Cntiiielln- leptoderma (Sollas), nat. size, p. 4. 

 Yin. 5. A smaller specimen of the same, nat. size. 

 FII;. r,. Tangential section of surface (x 100). 

 FII;. 7. Vertical section (x 15). 

 FIG. 8. Cortical oxea (x H>0). 

 FIG. 9. Anatriaene (x 100). 

 FIG. 10. Another kind of anatriaene (X 100). 

 FIG. 11. A third kind of anatriaene (x 100). 

 FIG. li'. Distal end of protriaene from root-tuft (x Hid). 

 FIG. 1:3. Trichodal protriaene (X loo). 

 Fn;. 14. Sigmata (X 700) ; 14a, the same (x 1400). 



