COWARD, Structure of Sytingodendron. 



EXPLANATION OF THE PLATE. 



Fig. i. Tangential longitudinal section of Syringodendron, 

 consisting of long periderm cells with two double rows of 

 parichnos strands cut transversely. Natural size. 



Fig. 2. Tangential longitudinal section of the same, shew- 

 ing one parichnos strand with surrounding periderm cells, and 

 the groups of cells with contents just indicated. (x6.) 



Fig. 3. Tangential section of the same, shewing the end of 

 one parichnos strand and periderm cells. For further descrip- 

 tion, see the text. ( x 15.) 



