22 



Transactions. 



Depression 

 with hairs 



Dorsal surface 



Ventral surface. 



Stole vvev/ 



Fig. 6. — Leaf of Raoulia Haastii. 



water tissue 



Fig. 7. — Transverse section of leaf of Raoulia Haastii. a, subulate portion; 



b, near basal sheath. 



