EXPLANATION OF PLATES. 143 



PLATE 10. 



APPENDAGES CONTINUED. p. 38. 



Fig. 1. Spine, or thorn, p. 39. 

 2., A Prickle. 



3. Glands on the leaf-stalk of the Passion- 



flower. 



4. Glands on the calyx of the Moss Rose. 



5. The Nettle, a. One of the stings (stimuli) 



magnified. It is a tube opening at the 

 point and containing a sack of poison at 

 the base, which when pressed on is dis- 

 charged through the point and produces 

 the inflammation and itching in the skin. 



6. A hairy leaf. 



INFLORESCENCE. p. 40. 



7. A Whorl, p. 40. 



8. Raceme. 



9. Spike, p. 41. 



